Astronomy

MethaneSAT, the first satellite made by an environmental nonprofit organization, was designed to monitor some of the world's largest industrial contributors of greenhouse gas emissions. Now, without power, the spacecraft's mission has abruptly ended.

Three members of NASA's Lewis Research Center’s (now NASA’s Glenn Research Center) Educational Services Office pose with one of the center’s Spacemobile space science demonstration units on Nov. 1, 1964.

By looking at the shifting of stars in photos from the New Horizons probe, astronomers have calculated its position in the galaxy – a technique that could be useful for interstellar missions

By looking at the shifting of stars in photos from the New Horizons probe, astronomers have calculated its position in the galaxy – a technique that could be useful for interstellar missions

A key milk protein for making cheese and yoghurt has been produced in bacteria for the first time, paving the way for better tasting but more sustainable animal-free products

A key milk protein for making cheese and yoghurt has been produced in bacteria for the first time, paving the way for better tasting but more sustainable animal-free products

The genome of a man who lived in Egypt over 4500 years ago offers a new window on the ancient society and hints at connections with Mesopotamia

The genome of a man who lived in Egypt over 4500 years ago offers a new window on the ancient society and hints at connections with Mesopotamia

Diet and exercise will only get you so far, but there is a magic bullet that could make us all live longer, says professor of global public health Devi Sridhar

Diet and exercise will only get you so far, but there is a magic bullet that could make us all live longer, says professor of global public health Devi Sridhar

As the sun grew hotter, so did Mars, prompting much of its atmospheric carbon dioxide to rain out and ultimately get locked up in rocks.

AI could be used to comb through electronic health records and warn vulnerable people about dangerous heat waves

This planet triggers flares on its star—spelling its ultimate doom

Astronomers using the European Space Agency’s Cheops mission have caught an exoplanet that seems to be triggering flares of radiation from the star it orbits. These tremendous explosions are blasting away the planet’s wispy atmosphere, causing it to shrink every year.

This is the first-ever evidence for a ‘planet with a death wish’. Though it was theorised to be possible since the nineties, the flares seen in this research are around 100 times more energetic than expected.

Some planets take the expression "you're your own worst enemy" to the extreme — triggering stellar flares from their own parent stars by being too clingy.

Space.com sat down recently with retired NASA astronaut Terry Virts to talk about space, politics and his run in Texas for a seat in the U.S. Senate.

An object from another star has been seen entering the solar system at high speed, and is expected to whip around the sun in the coming months

An object from another star has been seen entering the solar system at high speed, and is expected to whip around the sun in the coming months

An object thought to have come from another star has been seen entering the solar system at high speed, and is expected to whip around the sun in the coming months

An object thought to have come from another star has been seen entering the solar system at high speed, and is expected to whip around the sun in the coming months