New findings suggest that some exoplanets will have stable axial tilts and climates, much as Earth does. This knowledge will help astronomers search for worlds similar to ours - the long-sought Earth 2.0.

Look west after sunset to see Venus in conjunction with Regulus, the brightest star in the constellation Leo the Lion. Dazzling planet! Fainter star near it ... very cool to see.

A 5-minute video from the European Southern Observatory on the 2019 eclipse in South America and the South Pacific. Eclipse map, and more.

A beautiful view of the waning crescent moon, Pleiades star cluster and bright star Aldebaran in the dark eastern skies before dawn on July 9 and 10.

You've seen the picture: a fearsome T. Rex, baring its teeth, tongue stretching out of its mouth. But new research says there's a problem with this classic image. Dinosaurs couldn’t stick out their tongues.

Juno captured this image of swirling cloud belts and tumultuous vortices in Jupiter’s northern hemisphere during the spacecraft's 13th close flyby of Jupiter in May.

Ceres' intriguing bright spots have come into full view in these spectacular new high-resolution images from NASA's Dawn spacecraft, now in its lowest orbit around the dwarf planet.

About 5 percent of all UFO sightings cannot be easily explained by weather or human technology. A physicist argues that there's compelling evidence to justify serious scientific study and that the skeptics should step aside – for the sake of humanity.

"We won’t have a ‘yes’ or ‘no’ answer to finding life elsewhere. What we will have is a high level of confidence that a planet appears alive for reasons that can only be explained by the presence of life."

Can Mars appear this bright? Its brightness here is enhanced. Notice the MIlky Way, which doesn't look so bright to the eye. But Mars will be very bright - easily bright enough to reflect in water - in July 2018.