What happens when you turn space-time upside-down?
Last year, NASA set itself an ambitious goal: Send astronauts to walk on the moon in 2024. Now, the agency is busy planning what astronauts will do during those excursions.
The Russian startup StartRocket is developing a "Foam Debris Catcher," a small, autonomous satellite that would snag and de-orbit space debris using sticky polymer foam.
China successfully launched the final member in its Beidou satellite constellation Tuesday (June 23) completing a new global navigation system 30 years in the making.
NASA and Virgin Galactic have signed a Space Act Agreement, under which they will work together to support commercial space activity.
When ISS astronauts call Earth, they refer to it as "space to ground." For a call they made to Kathy Sullivan, the first astronaut to dive to the deepest point on Earth, a different term was merited.
A "ring of fire" solar eclipse crossed over Africa and Asia this weekend, and the view from space was spectacular.
Though Pluto is now famously frigid, it may have started off as a hot world that formed rapidly and violently, a new study finds.
The rare zodiacal light zodiacal light beams up at the Milky Way in this photo captured from Portugal's new "starlight tourism" destination.
Far-off alien planets covered in vast oceans might be common in our Milky Way galaxy, scientists find.
Incredible new images from the Hubble Space Telescope reveal nearly dead stars spewing blasts of hot gas into deep space in strange but stunning ways.
Role-playing game "Star Trek Timelines" released three new LGBTQ characters to celebrate Pride Month.
This dreamy night-sky photo features a golden full moon rising above the landscape of Alandroal, Portugal, in Dark Sky Alqueva, the world's first "starlight tourism destination."
The sun and moon converged in a dazzling "ring of fire" solar eclipse Sunday (June 21), stunning skywatchers across parts of Africa, Asia and more.
Astronomers with the Slooh online observatory will host a free webcast of the "ring of fire" solar eclipse of 2020 on Sunday, June 21, at 1 a.m. EDT (0500 GMT). Watch it live here!
A "ring of fire" solar eclipse, the only annular eclipse of 2020, will wow skywatchers in the Eastern Hemisphere. Here's how it works.
It's official: Summer is here for Earth's Northern Hemisphere while winter arrives in the south and Google, as always, is celebrating with artful style.