Sponges are among Earth's most ancient animals, but exactly when they evolved has long puzzled scientists. Genetic ...

NASA has postponed Thursday's spacewalk from the International Space Station because of an astronaut medical issue. The ...

NASA will bring Crew-11 astronauts back to Earth from the International Space Station, weeks earlier than planned, due to a ...

Normally, NASA overlaps incoming and outgoing crews aboard the ISS, but with the possibility of evacuating Crew-11 before ...

It will be the first such evacuation in the space station’s 25-year history. NASA officials said the astronaut is stable.

A giant impact on the early Earth could have brought the building blocks of RNA to our planet, which new research suggests ...

A group of astronauts will return from the International Space Station more than a month ahead of schedule after an unnamed ...

The crew member remains in stable condition, NASA Administrator Jared Isaacman said during a news conference at NASA ...

New research shows how RNA, a key molecule for life, may have formed on early Earth using simple chemistry and materials delivered by asteroid impacts, linking space science with the origins of life ...

In an investigation to find out what sparked life on Earth, researchers have discovered that RNA formed through surprisingly ...

New experiments suggest RNA, life’s essential molecule, could have formed naturally on early Earth and even arrived from ...

Three astronauts and one female astronaut are to leave the International Space Station prematurely. The reason is a medical ...