NASA needed just 14 days to fully unfold its $10 billion space telescope.
It took China’s Yutu 2 rover a full month to reach its underwhelming destination.
The upper stage spent nine days in a deteriorating orbit after a failed engine burn.
Some supergiant stars experience significant internal changes before going supernovae, according to new and unprecedented astronomical observations.
Newly released footage shows the observatory's separation from the Ariane 5 rocket in Earth orbit.
An unidentified object is sporadically dimming starlight in a system far, far away.
Webb launched just 12 days ago, and the next-gen observatory is quickly taking shape.
Launched on Christmas day, the $10 billion space telescope is now halfway to its destination some 1 million miles from Earth.
The mission may have enough fuel to last over a decade, thanks to an ultra-precise launch.
The DRACO camera is the only instrument aboard NASA's planetary-defense DART mission.
New models of Venus's atmosphere suggest it may not be as inhospitable as previously believed—though no life as we know it could survive there.
The spacecraft launched successfully, but there are still perils ahead before it begins its science mission.
The brightest comet of the year will make its closest approach to the Sun on January 3, and then return from whence it came.
Potential highlights include the first orbital launch of SpaceX's megarocket and a surprising number of Moon missions.
Liftoff of James Webb Space Telescope next-gen observatory is scheduled for 7:20 a.m. EST on December 25.
With laser-detecting devices in California and Hawaii, SETI researchers will be able to scan an unprecedented amount of sky.
The sheer number of potential points of failure for this $10 billion telescope has everyone on edge.
As scientists are steadily learning, the total number of starless planets in the Milky Way is astoundingly huge.
The problem was traced to a computer on one of the Space Launch System's four RS-25 engines, which date back to the Space Shuttle.
The space agency created a 50-second audio track with the data gathered by its Juno spacecraft during its flyby of the gigantic moon earlier this year.
