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Orion high in southern skies
Orion the Hunter is at its highest in the south in the evening now for the Northern Hemisphere. But the Southern Hemisphere has an even better view!
January 23, 2018
Waxing toward the super Blue Moon
The moon is getting closer to Earth, day by day, this week. A word about measuring the moon's changing distance from Earth, here.
January 22, 2018
50 years ago: Thule incident
On January 21, 1968, in what came to be known as the Thule incident, a U.S. jet carrying 4 nuclear bombs crashed in Greenland, spreading radioactive wreckage across 3 square miles of a frozen fjord.
January 21, 2018
Jupiter’s swirling south pole
Juno spacecraft view of planet Jupiter's southern polar region.
January 21, 2018
Winter blues
Sunset on Copt Hill, Sunderland, UK. Gary Pescod took this photo on January 18, 2018.
January 20, 2018
NASA and NOAA: 2017 was record-setting for warmth
NASA says 2nd-warmest year on record. NOAA says 3rd-warmest. Their methodologies differ slightly, but - by both standards - the 2017 results make the past 4 years the hottest yet recorded.
January 18, 2018
Saturn moon Titan has a sea level
A new topographic map of Titan, plus a new study showing that Titan's seas lie at an average elevation - a sea level - just as Earth's do.
January 18, 2018
Why did passenger pigeons die out?
In the 19th century, passenger pigeons were so numerous that hunters competed to shoot as many as possible. But the last passenger pigeon died in the Cincinnati Zoo over 100 years ago. How did it all go so wrong?
January 18, 2018
How massive can neutron stars be?
Settling a long debate, astrophysicists at Goethe University Frankfurt now say neutron stars can't exceed the mass of 2.16 suns.
January 18, 2018
