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Editors of EarthSky

A farewell to Saturn

Two days before it plunged into Saturn's atmosphere last September 15, the Cassini spacecraft returned this final, full mosaic image of the planet.

Asteroids photobomb distant galaxies

The Hubble Space Telescope captured nearby asteroids photobombing distant galaxies

Is telekinesis real?

A neuroscientist talks about the history of telekinesis and the complexity of the human brain.

How do human genes act in space?

"Looking at gene expression ... we really see an explosion, like fireworks taking off, as soon as the human body gets into space."

Find constellations of the zodiac

Today's sky chart shows the constellations of the zodiac that are up after nightfall on these October evenings.

Night sky from sea caves

Two images of the Milky Way, taken on the same night from sea caves along the California coastline, hundreds of miles apart.

Aging star blows off smoky bubble

A strikingly beautiful view of a delicate bubble of expelled material around the exotic red star U Antliae helps astronomers understand how stars evolve during the later stages of their life-cycles.

Goodbye, Cassini!

The Cassini spacecraft has become part of Saturn, the planet it studied so spectacularly and so long. Cassini's last images and final moments, here.

Dark for 2 years after dino-killing asteroid?

Can you imagine a sky so laden with soot that all of Earth stayed dark for 2 years? New research suggests it happened, at the end of the age of the dinosaurs.

NASA’s plans for August 21 eclipse

Not traveling to the centerline of the eclipse? Expect NASA images via 11 spacecraft, at least 3 aircraft, more than 50 high-altitude balloons, and the International Space Station.