COVID-19 may lower sperm counts, small study finds By Rachael Rettner In a study of 43 men who had recovered from COVID-19, nearly 20% had azoospermia, or the total absence of sperm in semen.
SpaceX's Crew-1 astronauts break 47-year US space record By Harry Baker SpaceX's Crew-1 astronauts have now spent more time in space than the crew of any other mission launched from U.S. soil.
Who was buried at Sutton Hoo? By Owen Jarus A medieval ship burial in England is now captivating viewers of the Netflix drama "The Dig." But who is actually buried at the 1,400-year-old site known as Sutton Hoo?
18 dead and hundreds missing in catastrophic Himalayan avalanche By Brandon Specktor Part of a glacier collapsed in the Indian Himalayas, triggering an avalanche that destroyed one dam and damaged another. Hundreds are feared missing or dead.
NASA appoints climate advisor to prioritize Earth science in Biden administration By Meghan Bartels Tackling the climate crisis is one of President Joe Biden's top priorities, and NASA has created a new role to match.
Could there be a cluster of antimatter stars orbiting our galaxy? By Paul Sutter We don't know why the universe is dominated by matter over antimatter, but there could be entire stars, and maybe even galaxies, in the universe made of antimatter.
Stash of more than 600 Roman-era silver coins discovered in Turkey By Laura Geggel A newly discovered coin hoard features Roman emperors engraved on the sides.
Mystery of gamma radiation solved: Hidden cannibal star is just having dinner By Rafi Letzter The mystery at the heart of an unexplained, bright point of gamma-ray light in the sky has been solved: a violent, whirling redback.
Fast-spreading coronavirus variant is doubling every 10 days in the US By Yasemin Saplakoglu The variant is rapidly spreading in the U.S. as it has in the U.K. and elsewhere around the world.
China's Tianwen-1 Mars mission snaps its 1st photo of Red Planet By Andrew Jones China's Tianwen-1 spacecraft snapped its first image of Mars as the mission makes its final approach; the probe will enter orbit around the Red Planet in less than a week.
The #PeepYourScience contest wants to see your sugary scientific dioramas By Nicoletta Lanese You can submit your own marshmallowy diorama between Feb. 15 and March 21.
Superpowerful 'oscillon' particles could have dominated the infant universe, then vanished By Paul Sutter A weird, super-powerful particle that's not truly a particle could have dominated the universe when it was just a second old, releasing a flood of ripples that permeated all of space-time.
Devious sperm 'poison' their rivals, forcing them to swim in circles until they die By Brandon Specktor Mouse sperm carrying a genetic sequence called the t-haplotype will poison their competitors, then make an 'antidote' only for themselves, new research finds.
How does the rubber pencil illusion work? By Isobel Whitcomb The rubber pencil illusion works because our brain can't keep up.
Stressful animation shows blue whale dodging hundreds of ships while trying to feed By Mindy Weisberger Scientists recently animated the hazards of being a blue whale that's trying to avoid collisions with ships at sea.
Did the Amazon female warriors from Greek mythology really exist? By Patrick Pester The Amazons were fierce female warriors of ancient Greek mythology, but did they really exist?
Diamonds need an electric zap to crystallize deep inside Earth By Laura Geggel A lab experiment mimicking mantle conditions revealed how diamonds need an electric field to grow.
Sea cucumbers pinch out '5 Eiffel Towers worth' of poop per reef, per year By Nicoletta Lanese Sea cucumbers poop an incredible amount — and that's really important.
Venus flytraps produce magnetic fields when they eat By Yasemin Saplakoglu These carnivorous plants generate tiny magnetic signals when they clamp down on insects.
Is it OK to mix and match COVID-19 vaccines? Oxford researchers begin trial. By Yasemin Saplakoglu Amid a shortage of vaccine supplies and the threat of emerging coronavirus variants, such an approach might provide an answer for both.
