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Monster Black Hole in Early Universe
A supermassive black hole found only a billion years after the Big Bang adds to growing questions about how such black holes grew so quickly. |
The Mysterious Martian "Plumes"
An anomalous "cloud" imaged by amateurs in 2012 has puzzled astronomers, spurring some to suggest it was at inexplicably high altitudes above Mars's surface. |
A Star's Closest Fly-By To The Sun
A red dwarf and its brown dwarf companion buzzed through the outer Oort Cloud some 70,000 years ago, around the time when modern humans began migrating from Africa into Eurasia. |
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| Observing Highlights |
This Week's Sky At a Glance, February 27 - March 7
The waxing gibbous Moon stars in the evening sky, pairing with Jupiter and Procyon on Sunday night. Also, look for several mutual events among Jupiter's moons this week. |
Solar and Lunar Eclipses in 2015
Two total lunar eclipses occur this year, on April 4th and September 27−28. Meanwhile, a total solar eclipse in March sweeps across remote Arctic waters on March 20th, and a partial event on September 13th is likewise poorly placed for observing. |
Crazy About Concentric Craters
With the Moon riding high this week, what better time to look for its three best-known yet enigmatic "ring" craters? |
March Astronomy Podcast: Tour Orion and His Belt
As we transition between seasons, Orion rides high in the evening sky — easily found by spotting the row of three bright stars in his Belt. |
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| This week's customer favorites at ShopAtSky |
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