Space

Measuring a black hole’s mass isn’t easy. A new technique could change that

An actively feeding black hole surrounds itself with a disk of hot...

Fast radio bursts could help solve the mystery of the universe’s expansion

Astronomers have been arguing about the rate of the universe’s expansion...

The Milky Way makes little galaxies bloom, then snuffs them out

If you’re a small galaxy and want to mint new stars, come...

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Another COVID-19 vaccine success? Candidate may prevent further coronavirus transmission, too

A third COVID-19 vaccine candidate has convincing evidence that it works, and it may be easier to distribute and cheaper than the...

More evidence hints that hydroxychloroquine doesn’t help treat COVID-19

The malaria drug hydroxychloroquine has been touted by some, including President Trump, as nearly a miracle cure for COVID-19. But new preliminary...

Bright yellow spots help some orb weaver spiders lure their next meal

Many orb weaver spiders sport yellowish stripes or spots on their undersides, and for a good reason. That color yellow tempts bees...

Wild donkeys and horses engineer water holes that help other species

Water drives the rhythms of desert life, but animals aren’t always helpless against the whims of weather. In the...

Abortion opponents protest COVID-19 vaccines’ use of fetal cells

Senior Catholic leaders in the United States and Canada, along with other antiabortion groups, are raising ethical objections to promising COVID-19 vaccine...

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Here’s what we know about Russia’s unverified coronavirus vaccine

Russia has launched a new Sputnik — this time, a vaccine to combat the coronavirus. Russian President Vladimir Putin...

Squirrels use parkour tricks when leaping from branch to branch

Parkour enthusiasts need look no further than up in the trees for inspiration. Squirrels’ aerial acrobatics make the rodents masters of the...

Measuring a black hole’s mass isn’t easy. A new technique could change that

An actively feeding black hole surrounds itself with a disk of hot gas and dust that flickers like a campfire. Astronomers have...

Fast radio bursts could help solve the mystery of the universe’s expansion

Astronomers have been arguing about the rate of the universe’s expansion for nearly a century. A new independent method to measure...

‘The Idea of the Brain’ explores the evolution of neuroscience

Neuroscientists love a good metaphor. Through the years, plumbing, telegraph wires and computers have all been enlisted to help explain how the...