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Today's Science Pulse

UK-led study reveals hidden massive star clusters deep within nearby galaxies

Astronomers using the VLA and ALMA uncovered previously unseen giant star clusters embedded deep inside nearby galaxies. The findings show that young stellar activity drives the evolution of these galaxies, reshaping their interstellar environments. Multiple observations confirm the clusters act as hidden “ring factories” of star formation.

WHO-Recommended Antibiotics Ineffective for Many Neonatal Sepsis Cases
NewsApr 21, 2026

WHO-Recommended Antibiotics Ineffective for Many Neonatal Sepsis Cases

Researchers from Oxford and a network of hospitals in Pakistan, Bangladesh and Nigeria presented the BARNARDS II study at ESCMID Global 2026, revealing that the WHO‑recommended first‑line antibiotics ampicillin plus gentamicin are likely effective against only 25 % of neonatal sepsis pathogens in...

By News-Medical.Net
Dr. Kaeberlein's Optispan Podcast Series - Rapamycin and More
BlogApr 21, 2026

Dr. Kaeberlein's Optispan Podcast Series - Rapamycin and More

The Optispan podcast hosted by Dr. Kaeberlein outlines a translational protocol for 3‑hydroxyanthranilic acid (3HAA), a mouse‑tested longevity molecule. Using FDA BSA scaling, the human equivalent dose (HED) is calculated at roughly 1.1 g per day for a 70‑kg adult. Safety...

By Rapamycin News
Resistance Training Cuts Fat and Boosts Grip Strength
SocialApr 21, 2026

Resistance Training Cuts Fat and Boosts Grip Strength

Exercise, nutrition, physical agent therapy in older adults with sarcopenic obesity: a systematic review and network meta-analysis RT can reduce BF% while simultaneously improving grip strength, representing an effective management strategy for sarcopenic obesity. https://t.co/p0wR2R5M1E

By David Barzilai, MD PhD
'The Chances of You Living 50 Years Are Very Small': Theoretical Physicist Explains Why Humanity Likely Won't Survive to See...
BlogApr 21, 2026

'The Chances of You Living 50 Years Are Very Small': Theoretical Physicist Explains Why Humanity Likely Won't Survive to See...

Nobel laureate David Gross, fresh off a $3 million Special Breakthrough Prize in Fundamental Physics, warned that the odds of a nuclear war hover around 2 % each year, giving humanity an average survival window of roughly 35 years. He linked this...

By Rapamycin News
EnergyX Starts First U.S. Direct Lithium Extraction Plant in Texas
NewsApr 21, 2026

EnergyX Starts First U.S. Direct Lithium Extraction Plant in Texas

EnergyX has commissioned the United States' first direct lithium extraction (DLE) plant at its Texas site, aiming to prove the technology at commercial scale and cut reliance on imported lithium. The modest‑capacity pilot marks a tangible move toward a homegrown...

By Pulse
U.S. Space Force Launches Cislunar Acquisition Task Force to Support Lunar Outpost
NewsApr 21, 2026

U.S. Space Force Launches Cislunar Acquisition Task Force to Support Lunar Outpost

At the Space Symposium in Colorado Springs, Maj. Gen. Stephen Purdy unveiled a new Cislunar Coordination Office within the Space Force acquisition side. Led by Jamie Stearns, the task force will map government stakeholders, forge industry partnerships and develop road‑maps...

By Pulse
PlanetiQ Wins $15 Million U.S. Air Force Contract to Build Next‑Gen GNSS Weather Constellation
NewsApr 21, 2026

PlanetiQ Wins $15 Million U.S. Air Force Contract to Build Next‑Gen GNSS Weather Constellation

PlanetiQ was awarded a four‑year, $15 million Strategic Funding Increase (STRATFI) contract by the U.S. Air Force to create a next‑generation GNSS‑based weather constellation. The deal expands the company’s existing GNSS‑RO platform with polarimetric occultation and reflectometry, aiming to improve military...

By Pulse
SpaceX Marks 600th Rocket Landing on Falcon 9 During Starlink Launch
NewsApr 21, 2026

SpaceX Marks 600th Rocket Landing on Falcon 9 During Starlink Launch

SpaceX achieved its 600th successful orbital-class booster landing when a Falcon 9 first stage touched down on the droneship "Of Course I Still Love You" during a Starlink launch from Vandenberg Space Force Base. The mission deployed 25 new satellites,...

By Pulse
Three‑Step Synthesis Unlocks High‑Entropy Alloy Nanoparticles for Catalysis
NewsApr 21, 2026

Three‑Step Synthesis Unlocks High‑Entropy Alloy Nanoparticles for Catalysis

Northwestern University researchers announced a three‑step synthesis that simultaneously controls composition and high‑index surface facets of high‑entropy alloy (HEA) nanoparticles. The method was demonstrated on a centimeter‑scale chip, producing roughly 36 million particles spanning 90,000 unique compositions, a scale previously unattainable...

By Pulse
Hokkaido University Unveils Micro‑Drone Platform to Capture Light‑Driven Twisting at the Nanoscale
NewsApr 21, 2026

Hokkaido University Unveils Micro‑Drone Platform to Capture Light‑Driven Twisting at the Nanoscale

Scientists at Hokkaido University launched a novel "micro‑drone" measurement platform that, for the first time, maps three‑dimensional optical forces on nanostructures and reveals a sideways twisting effect—transverse optical torque—driven by light’s helicity. The breakthrough opens a path toward light‑powered nanomachines...

By Pulse
Single-Celled Blob Proves You Don't Need a Brain to Learn Stuff
NewsApr 21, 2026

Single-Celled Blob Proves You Don't Need a Brain to Learn Stuff

Researchers at Harvard have demonstrated that the single‑celled protozoan *Stentor coeruleus* can exhibit associative learning despite lacking a brain or nervous system. In a series of tap‑stimulus experiments, the cells first habituated to repeated taps and later learned to respond...

By New Atlas – Architecture
NASA Awards SpaceX $176 Million Mars Rover Launch Contract Amid White House Budget Fight
NewsApr 21, 2026

NASA Awards SpaceX $176 Million Mars Rover Launch Contract Amid White House Budget Fight

NASA awarded SpaceX a $175.7 million contract on April 16, 2026 to launch the European Space Agency’s Rosalind Franklin rover to Mars on a Falcon Heavy. The deal marks SpaceX’s first deep‑space payload, but the White House’s FY2027 budget proposal omits funding for...

By Pulse
Tozorakimab Hits Primary Endpoint in Phase III MIRANDA COPD Trial
NewsApr 21, 2026

Tozorakimab Hits Primary Endpoint in Phase III MIRANDA COPD Trial

AstraZeneca announced that tozorakimab met the primary endpoint in the Phase III MIRANDA trial, delivering a statistically significant and clinically meaningful drop in moderate‑to‑severe COPD exacerbations. The result positions the IL‑33‑targeting biologic as a potential first‑in‑class therapy for a disease with...

By Pulse
CRISPR Screens Map Human T‑Cell Genes That Promote or Block HIV Infection
NewsApr 21, 2026

CRISPR Screens Map Human T‑Cell Genes That Promote or Block HIV Infection

Researchers at Gladstone Institutes and UCSF used genome‑wide CRISPR activation and knockout screens in primary human CD4+ T cells to map host genes that either promote or restrict HIV infection. By optimizing infection rates to about 70%, they could perturb...

By GEN (Genetic Engineering & Biotechnology News)
April 20, 2025: Visiting Asteroid Donaldjohanson
NewsApr 21, 2026

April 20, 2025: Visiting Asteroid Donaldjohanson

NASA’s Lucy spacecraft performed a secondary flyby of main‑belt asteroid 52246 Donaldjohanson on 20 April 2025, capturing a continuous time‑lapse from roughly 1,600 to 1,100 km. The high‑resolution L’LORRII images revealed a peanut‑shaped contact binary about 8 km long and 3.5 km wide, larger than...

By Astronomy Magazine
Four Overlooked AACR Early-Stage Agents Worth Watching
SocialApr 21, 2026

Four Overlooked AACR Early-Stage Agents Worth Watching

While everyone was watching KRAS, some of AACR’s promising early stage pipeline agents were easy to miss. Here's an analysis on four examples which caught my eye and are well worth watching to see how they develop in the...

By Sally Church
Irregular Bedtimes Double Risk of Major Cardiac Events
SocialApr 21, 2026

Irregular Bedtimes Double Risk of Major Cardiac Events

Sleep timing irregularity in midlife: association with incident major adverse cardiac events and cardiovascular disease mortality over a 10-year follow-up 🫀Individuals with irregular bedtimes had a 2-fold higher risk of MACEs compared to those with regular bedtimes Irregular sleep midpoints? Also a...

By David Barzilai, MD PhD
AACR26 Innovative Early Stage Developments to Watch Out For
BlogApr 21, 2026

AACR26 Innovative Early Stage Developments to Watch Out For

At the AACR annual meeting in San Diego, four cutting‑edge oncology programs were showcased in a single session. Each candidate is at or just beyond the threshold for first‑in‑human trials, spanning bispecific antibodies, RNA‑based therapeutics, CRISPR‑edited cell therapies, and novel...

By Biotech Strategy Blog
Korean Govt Backs University Project to Develop Precision Fermentation Toolkit
NewsApr 21, 2026

Korean Govt Backs University Project to Develop Precision Fermentation Toolkit

South Korea’s science ministry has awarded Kookmin University a core‑research grant in the 2026 Basic Research Program to develop a genetic toolkit for the food‑grade yeast Candida utilis. The toolkit will enable precision‑fermentation processes that produce proteins, amino acids, vitamins...

By Green Queen
NASA IG Raises More Questions About Readiness for Human Lunar Landings
NewsApr 21, 2026

NASA IG Raises More Questions About Readiness for Human Lunar Landings

A NASA Office of Inspector General report warns that next‑generation spacesuits for Artemis and the International Space Station are unlikely to be flight‑ready until 2031, far past the agency’s 2028 lunar landing target. The review highlights Axiom Space as the...

By SpacePolicyOnline.com
Cosmic Dust Identified as Source of Venus’s Lower‑Atmosphere Haze
NewsApr 21, 2026

Cosmic Dust Identified as Source of Venus’s Lower‑Atmosphere Haze

Researchers have demonstrated that cosmic dust from meteoroids burns up in Venus’s upper atmosphere, leaving mineral cores that aggregate into the planet’s lower‑atmosphere haze. The finding, published in Nature Astronomy, explains long‑standing observations and suggests a similar process may operate...

By Pulse
Grimaldi Launches Its Tenth Ammonia‑fuel Car Carrier, the 9,241‑CEU Grande Tokyo
NewsApr 21, 2026

Grimaldi Launches Its Tenth Ammonia‑fuel Car Carrier, the 9,241‑CEU Grande Tokyo

Grimaldi Group has christened the Grande Tokyo, its tenth ammonia‑ready car carrier, adding a 9,241‑CEU vessel to its fleet. The launch underscores the shipping line’s commitment to decarbonisation and marks a milestone for ammonia‑propulsion adoption in the industry.

By Pulse
Nektar’s Phase II Alopecia Extension Reveals Late Responders to IL-2 Therapy
NewsApr 21, 2026

Nektar’s Phase II Alopecia Extension Reveals Late Responders to IL-2 Therapy

Nektar Therapeutics reported results from a Phase II extension study of its interleukin‑2 (IL‑2) therapy for alopecia areata. The data revealed a subset of patients who did not respond initially but achieved meaningful hair regrowth after prolonged exposure, raising the...

By BioCentury
First Soft 3D Hydrogel Semiconductor Replicates Living Tissue
SocialApr 21, 2026

First Soft 3D Hydrogel Semiconductor Replicates Living Tissue

World’s First Soft #3D Hydrogel Semiconductor That Mimics Living Tissue by @tweetciiiim #EmergingTech #Innovation #Technology https://t.co/va8SZaZejg

By Ron van Loon
Tenofovir Alafenamide Cuts Biological Age in Adults
SocialApr 21, 2026

Tenofovir Alafenamide Cuts Biological Age in Adults

An FDA-Approved Tenofovir Alafenamide-Based Antiretroviral Therapy Reduces Biological Age in Healthy Adults: First Human Proof-of-Concept for Retrotransposon-Targeted Gerotherapeutics 💫 https://t.co/FFvTmJv2zv https://t.co/DHHQ18nAmy

By David Barzilai, MD PhD
Investors Pump $200 Million Into Amber Kinetics’ Long‑Duration Flywheel Storage
NewsApr 21, 2026

Investors Pump $200 Million Into Amber Kinetics’ Long‑Duration Flywheel Storage

Investors have committed $200 million to Amber Kinetics to scale its four‑hour kinetic energy storage units. The funding signals a renewed focus on flywheel technology as a practical, long‑duration alternative to lithium‑ion batteries for grid‑scale renewable integration.

By Pulse
SpaceX Launches Final GPS III Satellite for the U.S. Space Force
NewsApr 21, 2026

SpaceX Launches Final GPS III Satellite for the U.S. Space Force

SpaceX successfully launched the final GPS III‑8 satellite, designated SV10 and named “Hedy Lamar,” for the U.S. Space Force on April 21, 2026. The Falcon 9 booster B1095, on its seventh flight, delivered the payload to medium‑Earth orbit and landed on the drone ship “Just...

By Spaceflight Now
U.S. National Nanotechnology Initiative Seeks $1.45 B FY 2026 Funding Boost
NewsApr 21, 2026

U.S. National Nanotechnology Initiative Seeks $1.45 B FY 2026 Funding Boost

The U.S. National Nanotechnology Initiative (NNI) has submitted a $1.45 billion budget request for fiscal year 2026, aiming to sustain and expand nanoscale research across ten federal agencies. The request lifts cumulative federal investment in nanotechnology since 2001 to roughly $47 billion,...

By Pulse
France Triples Quantum Defense Budget to Preserve Strategic Edge
NewsApr 21, 2026

France Triples Quantum Defense Budget to Preserve Strategic Edge

France announced on April 17 that it will triple its quantum‑technology defense budget, a move aimed at safeguarding its strategic advantage. Minister of the Armed Forces Catherine Vautrin framed the investment as essential to staying ahead in the global quantum...

By Pulse
Novo Nordisk’s Etavopivat Hits Co‑Primary Endpoints in Phase 3 Sickle‑Cell Trial
NewsApr 21, 2026

Novo Nordisk’s Etavopivat Hits Co‑Primary Endpoints in Phase 3 Sickle‑Cell Trial

Novo Nordisk announced that etavopivat, its once‑daily oral pyruvate‑kinase‑R activator, met both co‑primary endpoints in the Phase 3 HIBISCUS trial, lowering annualised vaso‑occlusive crisis rates by 27% and raising hemoglobin response rates to 48.7% versus 7.2% on placebo. The data position...

By Pulse
Genomic Approaches for Understanding the Evolution of the Human Brain
NewsApr 21, 2026

Genomic Approaches for Understanding the Evolution of the Human Brain

A wave of high‑resolution genomic resources—including the complete human reference, telomere‑to‑telomere primate genomes, and expansive ancient DNA panels—has converged with functional assays such as brain organoids and xenotransplantation. These tools pinpoint human‑specific genes (e.g., ARHGAP11B, NOTCH2NL, FOXP2) and accelerated regulatory...

By Nature Neuroscience
Constituent-Constrained Word Prediction During Language Comprehension
NewsApr 21, 2026

Constituent-Constrained Word Prediction During Language Comprehension

A new study by Zou (2025) demonstrates that during real‑time language comprehension the brain predicts upcoming words primarily within the bounds of syntactic constituents. Using MEG recordings and a constituent‑constrained surprisal model, the author shows that N400 amplitudes align more...

By Nature Neuroscience
Personalized CRISPR Therapies Could Soon Reach Thousands — Here’s How
NewsApr 21, 2026

Personalized CRISPR Therapies Could Soon Reach Thousands — Here’s How

The FDA has proposed a "plausible mechanism" pathway to streamline approval of personalized CRISPR gene‑editing therapies. The new framework would let developers test multiple patient‑specific guide RNAs within a single trial, potentially shrinking the approval timeline from four years to...

By Nature – Health Policy
Shared and Disorder-Specific Prenatal and Perinatal Risk Factors for Neurodevelopmental Disorders: A Nationwide Cohort Study
NewsApr 21, 2026

Shared and Disorder-Specific Prenatal and Perinatal Risk Factors for Neurodevelopmental Disorders: A Nationwide Cohort Study

A French nationwide cohort of 6.8 million births examined prenatal and perinatal contributors to five neurodevelopmental disorders (ASD, ADHD, ID, communication and learning disorders). The analysis, which adjusted for co‑occurring conditions, confirmed shared risk factors such as male sex, prematurity, small‑for‑gestational‑age,...

By Nature (Biotechnology)
Re-Evaluating the Effectiveness of Ultrabrief Pulse ECT: The Potential Role of (In)appropriate Seizure Threshold Titration
NewsApr 21, 2026

Re-Evaluating the Effectiveness of Ultrabrief Pulse ECT: The Potential Role of (In)appropriate Seizure Threshold Titration

In a recent correspondence, Meijer et al. challenge a new meta‑analysis that found ultrabrief pulse (UBP) electroconvulsive therapy (ECT) less effective than brief pulse (BP) ECT for depression. They propose that many UBP studies used inappropriate seizure‑threshold titration, delivering higher‑than‑intended stimulus...

By Nature (Biotechnology)
US Speeds Research Into Mind-Altering Drugs — Including Mysterious 'Ibogaine'
NewsApr 21, 2026

US Speeds Research Into Mind-Altering Drugs — Including Mysterious 'Ibogaine'

On April 18, President Donald Trump signed an executive order to accelerate U.S. research on ibogaine and other psychedelics, directing the FDA to fast‑track review and providing $50 million in federal funding to match state programs. The order aims to ease...

By Nature – Health Policy
Single-Cell Epigenomes Link Fat to Heart Disease Risk
NewsApr 20, 2026

Single-Cell Epigenomes Link Fat to Heart Disease Risk

A new study leveraging single‑cell epigenomic profiling of human adipose tissue has uncovered distinct regulatory signatures that link excess fat to heightened heart disease risk. Analyzing over 200,000 fat cells from 500 donors, researchers identified 12 epigenetic regions that correlate...

By Bioengineer.org
Epigenome Proteins Enable Precise Cellular Engineering Beyond On/Off Control
SocialApr 20, 2026

Epigenome Proteins Enable Precise Cellular Engineering Beyond On/Off Control

Epigenome proteins generate distinct gene expression patterns, influencing cellular behavior beyond simple on/off control and offering new avenues for precise cellular engineering. generegulation

By Phys.org Threads
HDAC7 Loss Predicts Poor DLBCL Outcomes; Restoration Stops Tumor
SocialApr 20, 2026

HDAC7 Loss Predicts Poor DLBCL Outcomes; Restoration Stops Tumor

Loss of the HDAC7 protein in diffuse large B cell lymphoma is linked to poorer outcomes, while restoring HDAC7 in cancer cells halts tumor growth, highlighting its potential as both a biomarker and therapeutic target. bloodcancer

By Phys.org Threads
Each Protein in the Epigenome Produces a Different Pattern of Gene Expression, Study Finds
NewsApr 20, 2026

Each Protein in the Epigenome Produces a Different Pattern of Gene Expression, Study Finds

A study published in iScience reveals that each of the 87 epigenome proteins tested on a single yeast promoter generates a distinct gene‑expression trajectory, ranging from rapid activation to delayed spikes and variable noise. Researchers measured real‑time dynamics in about...

By Phys.org – Biotechnology
Actin “Purse‑string” Forces Drive Neural Tube Closure
SocialApr 20, 2026

Actin “Purse‑string” Forces Drive Neural Tube Closure

New computer models show that actin-driven "purse string" forces enable cells to close the neural tube during early brain development, offering insight into how disruptions in this process can lead to birth defects such as spina bifida. neuroscience

By Phys.org Threads
UK to Lower Green Power Costs by Cutting Gas Exposure
SocialApr 20, 2026

UK to Lower Green Power Costs by Cutting Gas Exposure

The UK will seek to speed up efforts to cut the costs of green electricity by reducing exposure to more-expensive gas https://t.co/LNvTUk7yXd

By Vox – Climate
AI Model 'Reads' Protein Pairs, Unlocking New Insights Into Disease and Drug Discovery
NewsApr 20, 2026

AI Model 'Reads' Protein Pairs, Unlocking New Insights Into Disease and Drug Discovery

Researchers at the National University of Singapore unveiled a paired protein language model (PPLM) that learns from two interacting proteins simultaneously, a departure from traditional single‑sequence AI approaches. Trained on more than 3 million protein pairs, the model powers three tools—PPLM‑PPI,...

By Phys.org – Biotechnology
Japan's Solar Hits 10% of Electricity, Outpacing World Average
SocialApr 20, 2026

Japan's Solar Hits 10% of Electricity, Outpacing World Average

Solar power accounted for 10% of Japan’s electricity generation for the first time last year, exceeding the global average of 9%, according to a report from energy think tank Ember https://t.co/4Kq1hwrntl

By Vox – Climate
Higher Plasma Choline and Betaine Linked to Better Cognition
SocialApr 20, 2026

Higher Plasma Choline and Betaine Linked to Better Cognition

Plasma free choline, betaine and cognitive performance: the Hordaland Health Study | British Journal of Nutrition | Cambridge Core - https://t.co/3xnGTbju80

By Michael Lustgarten, PhD
The 'Dumb Machine' Promising a Clean Energy Breakthrough
NewsApr 20, 2026

The 'Dumb Machine' Promising a Clean Energy Breakthrough

Proxima Fusion, a German‑based startup, is racing to build a tokamak‑style fusion reactor dubbed Alpha, relying on ultra‑complex magnetic coils that it hopes to mass‑produce far faster and cheaper than traditional designs. The company leverages Germany’s deep CNC machining talent...

By BBC Business
Australia–US Research Alliance to Advance Quantum and Innovation
NewsApr 20, 2026

Australia–US Research Alliance to Advance Quantum and Innovation

The University of Sydney and New York University have signed a research cooperation agreement to boost Australia’s quantum, innovation and technology capabilities. The partnership will focus on quantum computing and sensing, computational biomedicine, and environmental resilience, aligning with Australian government...

By OpenGov Asia
India: IITs Advance Space Science and Global Research Partnerships
NewsApr 20, 2026

India: IITs Advance Space Science and Global Research Partnerships

The Indian Institute of Technology Roorkee signed an MoU with the Uttarakhand Space Application Centre to deepen collaboration on space science, geospatial technology, climate and disaster management. Simultaneously, IIT Delhi entered a partnership with the University of Liverpool to pursue...

By OpenGov Asia
What Makes Mars' Magnetotail Flap? Two Spacecraft Point to Magnetic Reconnection
NewsApr 20, 2026

What Makes Mars' Magnetotail Flap? Two Spacecraft Point to Magnetic Reconnection

Researchers using NASA's MAVEN and China's Tianwen‑1 orbiters have identified magnetic reconnection as a likely driver of the up‑and‑down flapping observed in Mars' magnetotail. The study, published in AGU Advances, links reconnection signatures detected upstream by MAVEN with downstream flapping...

By Phys.org - Space News