"We knew the Milky Way had a bar, like other barred spiral galaxies. But we only had indirect indications from the motions of stars and gas. This is the first time we see the galactic bar in 3D space, based on geometric measurements of stellar distances."
After many years of searching, astronomers have finally found what appears to be a circumplanetary disk - that is, a disk of gas and dust - surrounding a young exoplanet. Evidence suggests that moons may be forming there.
With virtually no atmosphere on the moon - and, therefore, no wind - flags that fly freely on Earth would hang like limp cloth in the lunar environment. So Apollo 11 engineers had to rethink flagpole design entirely.
The subsurface ocean of Saturn's moon Enceladus seems possibly habitable in many ways. Now a new study has determined it's the right age to support life, too.
The total solar eclipse of August 22, 1142, may have coincided with the birth of the Iroquois Confederacy, oldest democracy in North America and possibly on Earth.
Scheduled for launch in 2026, the Dragonfly mission will look for clues to the origins of life, and possibly even evidence of life itself, on Saturn's alien yet remarkably Earth-like moon Titan.