All About Everything

Watch Jupiter meet the moon and Mercury this week before leaving the night sky

It teamed with Venus at the start of the month, making for a stunning sight in the western evening twilight. But the giant of the solar system still has two more appointments on its docket to keep during the time frame running from March 22 to 27.

DART mission reveals asteroid Dimorphos is dry as a bone

Six months after NASA slammed a spacecraft into an asteroid at high speed, scientists are beginning to gain a clearer picture of the mission's target. Careful scrutiny of the debris from the impact of NASA's DART mission into Dimorphos has not found ...

RNA compound and vitamin B3 found in samples from near-Earth asteroid

A graphic shows some of the molecules found in samples taken from the asteroid Ryugu by the Japan Aerospace Exploration Agency's Hayabusa2 mission. NASA/JAXA/Dan Gallagher.

Mysterious radio signal reveals intricate core of distant galaxy cluster

A puzzling radio emission from a galactic cluster located in the constellation may come from the 1.66 million light-year-long radio tail of its dominating central galaxy. The team that made this discovery also found evidence of mergers between galaxies ...

Watch solar tornado as tall as 14 Earths hurl plasma cloud into space (video)

NASA's Solar Dynamics Observatory captured what might be 'the tallest tornado' in the solar system swirling across the north pole of the sun. The twisting filament of boiling plasma kept growing in the sun's atmosphere for three days last week, ...

Scientific American

Will Humans Ever Go Extinct?

Scientific American

Paleontologically, mammalian species usually persist for about a million years, says Henry Gee, a paleontologist and senior editor at the journal Nature, who is working on a book on the extinction of humans. That would put the human species in its youth.

Spaceflight Now

Webb telescope sees the prelude to a supernova

Spaceflight Now

A new image from the James Webb Space Telescope shows a rare glimpse of a massive star 15,000 light-years away shedding a halo of gas and dust, seeding the cosmos with elements necessary for forming other stars, planets, and the building blocks of life ...

Building block of life found in sample from asteroid Ryugu

One of the four nucleobases of RNA has been discovered in samples retrieved from the asteroid Ryugu, providing the strongest evidence yet that the organic building blocks for life on Earth came from space. In December 2020, Hayabusa2, a mission of the ...

Researchers get to the "bottom" of how beetles use their butts to stay hydrated

EurekAlert

EurekAlert

Insect pests eat their way through thousands of tons of food around the world every year. Food security in developing nations is particularly affected by animal species like the grain weevil and red flour beetle which have specialized in ...

'Marsupial sabertooth' had massive canines with roots that grew over the top of its skull

In order to successfully hunt prey and survive, the "marsupial sabertooth," called Thylacosmilus atrox, adapted to view the world in a unique way, according to new research, because its canine teeth that jutted downward from its mouth were so large that ...