NASA "overpaid" Boeing by hundreds of millions of dollars on a fixed contract to develop a spaceship to carry astronauts to the International Space Station (ISS), an audit report has said, compensation it called "unnecessary."

The U.S. has relied on Russia to transport its crews to the ISS since the end of the Space Shuttle program in 2011, but has hired Boeing and SpaceX under multi-billion dollar contracts, with the two companies already two years behind schedule.

The first ever spacewalk with an all-female team began Friday, footage broadcast by NASA showed.

It's official: The Saharan silver ant is the fastest of the world's 12,000 known ant species, clocking a blistering 855 millimeters -- nearly a meter -- per second, researchers said Thursday.

Alexei Leonov, a legendary Soviet cosmonaut who was the first man to perform a spacewalk in 1965, died in Moscow on Friday aged 85 after a long illness.

Humans will never migrate to a planet outside of Earth's solar system because it would take far too long to get there, Swiss Nobel laureate Michel Mayor said Wednesday.

They are omnipresent and essential to navigating modern life. Small, light, rechargeable: lithium ion batteries have revolutionized our world in less than three decades.

Canadian-American cosmologist James Peebles and Swiss astronomers Michel Mayor and Didier Queloz on Tuesday won the Nobel Physics Prize for research that increases the understanding of our place in the Universe.

Interference in government research by U.S. President Donald Trump's administration has reached a "crisis point" with almost weekly violations of previously respected safeguards, a report by a think tank said Thursday, warning that ignoring science has led to ineffective and costly policy.

A three-man crew including an Emirati who became the first Arab to reach the International Space Station returned to Earth safely on Thursday and were in good shape, the Russian space agency Roscosmos said.

An Emirati has made history as the first Arab to reach the International Space Station, after blasting off from Kazakhstan.