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Proxima Centauri’s awesome new planet

The newly found planet for Proxima Centauri, our sun’s nearest neighbor among the stars, is revealed as the closest possible abode for alien life.

A new normal for Arctic sea ice?

“A decade ago, this year’s sea ice extent would have set a new record low …Now, we’re kind of used to these low levels of sea ice – it’s the new normal.”

Strong earthquakes rock Italy overnight

Dozens reported killed, and over 150 missing, in the earthquakes that shook Italy in the early morning of August 24. Searches ongoing.

Today in science: Pluto the dwarf planet

August 24, 2016 is the 10th anniversary of astronomers’ announcement of Pluto’s demotion to dwarf planet. The decision caused a shock wave around the world.

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Mars and Saturn put on a show

See Mars, Saturn and the star Antares in a line on our sky’s dome. Photos here from the EarthSky community. Thanks to all who posted!

No double moon in 2016, or ever

We thought we might get through this summer without the dumb hoax about Mars as big as a full moon rearing its head. But, no.

Tallest peak in the US Arctic is …

No one knew whether Mount Chamberlin or Mount Isto was taller. Now an aerial study – and a ski mountaineer – declare a winner.

Today in science: Earth from the moon

First photo of Earth from the moon, released it in 1966. Later, NASA used modern digital technology to restore the photo, revealing more detail.

Best places to watch 2017 eclipse

Where’s the best place to see the August 21, 2017 eclipse? Here are 10 great viewing spots to gaze upon nature’s grandest spectacle, weather permitting.

Where’s the moon? Waning gibbous

Look for the waning gibbous moon to rise in the middle of the night. It might look strangely oblong.

NASA prepares to sample an asteroid

On September 8, NASA will launch its first sample return mission to an asteroid. A robot arm will reach out, snag some asteroid bits and return them to Earth.

Total eclipse of sun: August 21, 2017

One year from today … the 1st total solar eclipse visible from the contiguous U.S. since 1979. Start planning now!

Dates of lunar and solar eclipses in 2016

The next eclipse is an annular solar eclipse on September 1, 2016.