Don't sleep on carbon monoxide, alien hunters.
The newly released photo shows the robotic lander, known as Beresheet, looking back at Earth from a distance of 23,363.5 miles (37,600 kilometers).
The best-ever photos of Ultima Thule have made it down to Earth, and they heighten the intrigue about the frigid and faraway world.
An Israeli moon lander just took to the skies, but we'll all have to wait nearly two months for its historic touchdown try.
The final photos that NASA's New Horizons spacecraft snapped of Ultima Thule during the probe's epic Jan. 1 flyby reveal the distant object to be much flatter than scientists had thought.
The monster collision between our Milky Way and fellow spiral galaxy Andromeda will occur about 4.5 billion years from now, rather than in 3.9 billion years.
One of the Hubble Space Telescope's most famous images peered even deeper into the cosmos than scientists had thought.
A chunk of material brought back from the moon by NASA astronauts in 1971 harbors a 4-billion-year-old piece of Earth that was blasted off our planet by a long-ago impact, a new study suggests.
The weirdly clustered orbits of some far-flung bodies in our solar system can be explained without invoking a big, undiscovered "Planet Nine," a new study suggests.
A spectacular new video gives a lander's-eye view of the first-ever touchdown on the moon's mysterious far side.
The most distant celestial object ever explored may well have moons, and astronomers are trying hard to find them.
China's robotic Chang'e 4 mission touched down inside the huge South Pole-Aitken basin Wednesday (Jan. 2), pulling off the first-ever soft landing on the largely unexplored lunar far side.
Ultima Thule, the weird Kuiper Belt object that NASA's New Horizons spacecraft visited in a historic flyby on Jan. 1, 2019, looks like a cosmic bowling pin, scientists say.
NASA's OSIRIS-REx probe, which just arrived at the asteroid Bennu last week, has already found lots of hydrated minerals on the space rock, mission team members announced today (Dec. 10).
China's robotic Chang'e 4 spacecraft launched from Xichang Satellite Launch Center Dec. 7, kicking off the first-ever surface mission to the moon's far side.
SpaceX's next cargo launch to the International Space Station has been pushed back to Wednesday (Dec. 5) due to a rodent problem.