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Vesta, brightest asteroid, brightest for 2017

If you’ve never spotted an asteroid, now would be a good time to try. Vesta’s 2017 opposition is around now. Guy Ottewell provides charts and explains more.

2017 is a lousy year for Mars, but wait!

Throughout 2017, Mars will appear as a faint and inconspicuous reddish star in our sky. But wait until 2018, when Mars will come closer to Earth than it has since 2003.

Today in science: Finding magnetic south

On January 16, 1909, a team of Antarctic explorers thought they’d found the magnetic south pole. Then, a few years later, they began to have doubts.

Why stars seem brighter this time of year

No matter where you are on Earth on December, January and February evenings, you’re looking toward bright stars in our local spiral arm.

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Forensic science looks at human evolution

The reach of forensic science’s is being extended back from crime scenes into prehistory to help unlock the mysteries of human evolution.

Winter Circle: Brilliant winter stars

It’s a big circle of bright stars. In the Northern Hemisphere, we call it the Winter Circle, but it can be seen from around the globe.

Moon in a waning gibbous phase

Full moon has come and gone. Now the moon is rising later at night. Watch for a daytime moon in the west in early morning in the next few days.

2017 has 2 Friday the 13ths

When a common year of 365 days starts on a Sunday, as it does this year, 2 Friday the 13ths are inevitable. The 1st one is in January.

When does Friday 13th have a full moon?

January 13, 2017 is a Friday the 13th, and the moon is one day past full. Past and future dates when Friday the 13th and the full moon coincide.

See it! First full moon of 2017

In the Northern Hemisphere, the January full moon is sometimes known as the Wolf Moon. Howl at these awesome photos of the January’s full moon from EarthSky friends around the world.

Watch 2017’s 2nd spacewalk Friday

ISS astronauts will work on a complex upgrade to the station’s power system during the January 13, 2017 spacewalk. Spacewalk begins around 7 a.m. EST (1200 UTC) and is expected to last about 6 hours.

EarthSky’s meteor shower guide for 2017

All you need to know about 2017’s major meteor showers! How and when to watch, and more.

Star of the week: Capella

We see Capella as the brightest star in the constellation Auriga the Charioteer. It’s actually 2 stars, each with a golden color similar to our sun.