Learn about a faraway cosmic feature that looks like a cat's tail made of "fluffy" dust grains that may have scattered after ...

Earth is retaining more energy than it releases, with oceans absorbing most excess heat. Scientists combine ocean and satellite measurements to carefully track this imbalance.

NASA's twin ESCAPADE probes, Blue and Gold, loop back past Earth on Nov. 7 and 9 for a gravity boost toward Mars. Here is how ...

One of NASA’s premier space telescopes plunged to Earth on Wednesday, ending its 22-year investigation of the universe’s ...

Earth has a new moon, but don’t get too attached. Earth has a new moon, but don’t get too attached. Our planet’s gravity ...

The space agency estimated that there was a one-in-2,100 chance that debris from the Neil Gehrels Swift Observatory could ...

If you’ve ever looked at a piece of raw amethyst and felt something shift in your chest, something like wonder mixed with the vague suspicion that the Earth has been showing off behind your back, then ...

A Tucson family is planning a wake of sorts for a doomed NASA space telescope that is named after an astrophysicist who grew ...

An attorney argues that private space colonization could shift power from governments to billionaires and give space-based ...

For the first time in over a year, NASA's Perseverance rover has collected a sample on Mars. On Oct. 24, the rover drilled a ...

Only 835 lunar meteorites have been verified, yet scientists say these fallen fragments could show parts of the Moon that spacecraft never sampled.

A mysterious celestial object has arrived from outside the solar system.Last time, I talked about 'Tabby's Star,' where a ...