In his final book, released Oct. 16, Stephen Hawking tackles big questions about the universe, delving into physics, cosmology, the existence of God and the future direction of humanity.
Everything was going smoothly — until NASA astronaut Nick Hague felt a sudden tremor. "The first thing I really noticed was being shaken pretty violently side to side," he said.
What do you do when you're a self-described "fierce fan" of famed astrophysicist Neil deGrasse Tyson? Write a children's book about him, of course.
This year's Breakthrough Prize honors pulsar discoverer Jocelyn Bell Burnell, a pioneer in the field of multi-messenger astronomy, gravitational-wave researchers and scientists investigating the nature of gravity and the quantum realm.
"Replicas," Keanu Reeves new, little-known, indie sci-fi movie looks awesome in a brand-new trailer.
The universe might be tricking us with its optical illusions.
"First Man" is a movie steeped in even more space history than audiences might be aware. Here's a look at the hidden details, or "easter eggs," that maybe only eagle-eyed space geeks might notice.
Cataclysmic mergers of the superdense stellar corpses known as neutron stars may be common across the cosmos, a new study suggests.
An advanced U.S. military communications satellite soared into space in the midnight hour Wednesday (Oct. 17), lighting up the sky over Florida as it launched into orbit.
NASA's next Mars spacecraft will soon know its landing site, as scientists meet to debate the relative merits of four final contenders. The mission will investigate whether the Red Planet ever hosted life.
From robots to rockets and toddler-size telescopes, here are Space.com's picks for the best space and STEM gifts for kids this year.
From stargazing gear to cosmic bling and out-of-this-world toys, here are Space.com's picks for the coolest space gifts of 2018.
The death of billionaire technologist, philanthropist and private-spaceflight entrepreneur Paul Allen has hit hard for people from many different walks of life. Read a few tributes to him from folks in the spaceflight and SETI communities.
Alien characters allow writers to thematically discuss feelings of ostracization, said "Roswell, New Mexico" writer and show developer Carina Adly MacKenzie during a New York Comic Con 2018 event.
But how is such a mission even possible?
Are we all going to be replaced?
BepiColombo is a planned European-Japanese mission to Mercury. It is set to launch in 2018.
One day after a Soyuz rocket failed just after liftoff, sending its two-man crew on a dramatic abort in midflight, the head of Russia's space agency Roscosmos said the American and Russian aboard the flight will fly again next year.
In an astronomical first, four gigantic planets have been detected around a very young star, a new study reports.
Moons could possess moons of their own. Kepler-1625b-i, a newfound candidate to be a giant alien moon, may even possess one or more moons that once had habitable surfaces, a new study finds.