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A large volcanic outburst on Jupiter’s moon Io
An astronomer used a remotely operated telescope to monitor Io's volcanoes. In fall 2022, he saw a large volcanic outburst - the largest yet!
January 4, 2023
Jupiter’s moon Io: Global magma ocean, or hot metal core?
2 new research papers debate whether Jupiter's moon Io has a magma ocean or a hot metal core. The results were presented at the AGU22 meeting this month.
January 4, 2023
Nearly full moon near Orion, January 4 and 5
See the nearly full moon near Orion the Hunter, a hallmark of January skies. Bright, reddish Mars is nearby in the constellation Taurus the Bull.
January 4, 2023
Isaac Newton born today in 1643
Isaac Newton, born on January 4, 1643, discovered the laws of motion and other principles that laid the foundation of physics and astronomy.
January 4, 2023
Moon near Mars and Pleiades, January 2 and 3
Look for the moon near Mars and the Pleiades star cluster on the evenings of January 2 and 3, 2023. The red star Aldebaran is also nearby.
January 3, 2023
Winter wonderland on Mars
NASA captured fascinating images of the winter wonderland on Mars. When Mars thaws in the spring, the ice takes on new shapes and results in erupting geysers.
January 3, 2023
2 alien water worlds with oceans 500 times deeper than Earth’s
An international team of astronomers says that 2 exoplanets 218 light-years away are true water worlds, with global oceans 500 times deeper than Earth's oceans.
January 2, 2023
Best of 2023: Night sky events not to miss
Best of 2023: Find the most magnificent night sky scenes that you won't want to miss, chosen for you by the editors of EarthSky. Planets, eclipses and more!
January 1, 2023
10 best northern lights photos of 2022
The blog “Capture the Atlas” announced its best northern lights photos of 2022. You can see 10 of the best aurora photos in the world here.
December 30, 2022
Celestial fireworks from supernova explosion
A new Hubble image shows celestial fireworks from supernova remnant DEM L 190. The supernova remnant resembles the smoke and streamers of summer fireworks.
December 30, 2022
