The 12 proposals will now undergo scientific and technical review over the next seven months.
Astronauts could not have made it to outer space without the brave group of deaf men who volunteered to help NASA.
The Mars rover Curiosity is carrying dirt in its hand as it scales a mountain and continues exploring another planet.
Astronomers say this new planet they found is like Jupiter but much hotter, and that makes for some freaky clouds and weather patterns.
Jupiter’s enormous swirling red storm, its Great Red Spot, is shrinking so much that it is changing shape and could soon be the size of Earth.
NASA released a half-minute movie Wednesday, made from a sequence of images captured by the spacecraft during the first dive of the Grand Finale mission.
The Eta Aquarid meteor shower will be on full display early Saturday.
Stephen Hawking says humans have to leave Earth in the next 100 years and colonize another planet if we want any hope of surviving extinction.
This giant wave is billions of years old and still going in the Perseus galaxy cluster.
NASA is trying to find out how much greenhouse gas the mid-Atlantic can absorb to map out future climate change.
When NASA’s Cassini spacecraft went on a dive between Saturn and its rings, scientists heard whooshes and squeaks instead of pops and cracks, showing that the gap is emptier than they expected.
The total solar eclipse in August is your last chance to see one in the United States until 2024.
Lego's new set is a one-meter tall NASA Saturn V, the rocket used for Apollo missions that sent people to the moon.
Neptune appears to be moving backward in its orbit in these images taken by the Kepler spacecraft, but it’s all a trick.
Tiny aliens on a TRAPPIST-1 exoplanet would have an easy time traveling to one of the neighboring planets in its solar system because they are so close together.
Eruptions on the sun look very different, but they might all be produced the same way — with energy bursting through a magnetic field.
A single piece of space junk could trigger an unstoppable domino effect of catastrophic collisions.
The Dawn spacecraft observing Ceres lost the function of one of its reaction wheels.
NASA’s spacecraft Cassini is back online after going dark during a plunge between Saturn and its rings — and we have photos.
In a 52-page audit report, the space agency's Office of Inspector General warned that there was a “significant risk” that its next-generation spacesuits may not be ready before the International Space Station’s potential retirement in 2024.
An unmanned mission to Pluto is in the works at NASA.
The Cassini spacecraft is taking a dive between Saturn and its rings to send scientists views they have never seen before.