NASA astronauts Christina H. Koch and Jessica Meir made history today, taking part in the first-ever spacewalk in the agency’s history featuring only women. The two astronauts ventured outside of the International Space Station in order to effect a repair on a failed power controller for the …

A new way of studying planets in other solar systems - by doing sort of an autopsy on planetary wreckage devoured by a type of star called a white dwarf - is showing that rocky worlds with geochemistry similar to Earth may be quite common in the cosmos.

The new research found irradiated mice were overly anxious, avoided light transitions, couldn't easily learn and remember, and showed behaviors linked to PTSD.

Former NASA astronaut Mike Massimino breaks down all the differences between using the bathroom, washing your hair, and brushing your teeth on Earth and in space. How do you take showers in space?

Documents show Elon Musk's firm SpaceX wants to launch another 30,000 satellites - more than triple the total amount humans have ever launched

NASA revealed new spacesuits, specifically created for the Artemis generation of missions, which aim to get the first American woman and the next American man to the surface of the Moon by 2024.

The milestone is long overdue.

You’ve heard it before: In space, no one can hear you scream. That’s because sound doesn’t move through a vacuum, and everyone knows that space is a vacuum. The thing is, that’s not completely true.

For many wannabe astronauts, venturing into the great unknown would be a dream come true. But it can easily turn into an astronaut's worst nightmare.

How the first human to take steps in outer space nearly didn't return to Earth

Things haven’t quite gone to plan for India's Chandrayaan-2 mission, with the team losing the spacecraft’s Vikram lander following a touchdown attempt last month. But there is still plenty of science to come as the probe continues to circle the Moon, with the latest imagery relayed by the orbiting…

China has broken new ground, successfully growing cotton on the moon for the first time. The experiment was part of the Chang'e 4 project, in which China is exploring the far side of the moon with a lander. The cotton plant was one of several organisms encased in a mini biosphere aboard the lander.

UC Riverside-led research shows our galaxy is undergoing a massive merger with its largest satellite galaxy, the Large Magellanic Cloud

Primordial black holes born in the moments after the big bang could clear up some of cosmology's most confounding conundrums

Astronomers have discovered intriguing evidence that an asteroid break-up blanketed Earth with dust millions of years ago. The event dramatically cooled the planet and triggered an ice age that was followed by major increases in numbers of new animal species.

An international team of scientists is constructing the Large Synoptic Survey Telescope in Chile, which will be an essential tool for asteroids alert.

Strange machine will explore surface ahead of future human landings

There's more testing needed before astronauts fly to space on Crew Dragon.

He was awarded 2019 Nobel Prize in Physics on Tuesday for 'groundbreaking discoveries'

Mayor's co-laureate, Didier Queloz agreed, telling Newsweek, "It's time to stop dreaming and confront reality, and for our human society to carry our effort and act to ensure that a future exists and that maybe, one day, we will be able to journey among the stars."