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EarthSky’s meteor shower guide for 2017

All you need to know about 2017’s major meteor showers. Next good opportunity is late July and early August. Watch between midnight and dawn, when the moon is down. You won’t catch a magnificent display, as in some years, but you might see some!

Have you seen the Mayak satellite?

On July 14, an amateur group in Russia launched a small satellite called Mayak. They said it would become the “brightest shooting star” in the sky. Why’d they do it? Here’s how to look for it.

Soar over Pluto and Charon

To celebrate the 2-year anniversary of New Horizon’s flyover of the Pluto system, NASA released these 2 cool videos. Sail over the surface of Pluto and its large moon Charon.

Peering toward the Cosmic Dark Ages

During the Cosmic Dark Ages, our universe matured from a primordial soup of neutral gas to the star-filled cosmos we see today. A new study probes this mysterious time.

No commands to Mars craft in late July

NASA says to blame the sun for its moratorium on sending commands to Mars from July 22 to August 1.

Strange radio signals from nearby star

A 10-minute observation in May of nearby star Ross 128 yielded a peculiar radio signal. Further observations planned for Sunday night.

Planet 9 hypothesis alive and well

Is there an unknown, massive planet on the fringes of our solar system? New work that claims to remove “observational bias” also supports this very exciting possibility.

Wow! Juno’s super-close Red Spot images

Raw images from the Juno spacecraft’s extremely close sweep past Jupiter’s Red Spot are beginning to come in. NASA invites you to help process them!

Astronomers find the smallest star yet

This star is just a sliver larger than Saturn, not even the largest planet in our solar system.¬†Yet it’s massive enough to shine as a star, and its pull of gravity is some 300 times stronger than Earth’s.

Dawn at Saturn

Although the Cassini spacecraft – now on the verge of running out of fuel – is in its final year in orbit around Saturn, it’s still producing heart-stirring images.