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Hubble watches spoke season in Saturn’s rings
NASA's Hubble telescope has recently observed spoke season in Saturn's rings. The spokes are ghostly transient features that appear and disappear seasonally.
January 3, 2024
The meridian: When does the sun cross it?
In the jargon of astronomers, the sun is said to make an upper meridian transit when it reaches its highest point for the day at solar noon (midday).
January 2, 2024
Today in science: Luna 1, 1st spacecraft headed to moon
Some historians believe the Soviet spacecraft Luna 1 was supposed to hit the moon. It didn't. However, it was the first earthly craft to sweep past the moon.
January 2, 2024
What is a penumbral eclipse of the moon?
There are 3 kinds of lunar eclipses: total, partial and penumbral. A penumbral eclipse is very subtle. You can notice a shading on the moon's face.
January 1, 2024
Mighty earthquake rocks Japan. Coastal areas evacuated
Mighty earthquake rocks Japan! The earthquake measured magnitude 7.5 according to USGS. It struck Japan on Monday afternoon, local time, prompting strong tsunami warnings.
January 1, 2024
How to photograph a solar eclipse, with Alan Dyer
Get tips on how to photograph a solar eclipse with author and astrophotographer Alan Dyer. Use these tips for the April 8, 2024, total solar eclipse.
January 1, 2024
Lenticular clouds look like UFOs
Lenticular clouds look like UFOs. See photos of lenticular clouds in various parts of the world, from the EarthSky community.
January 1, 2024
Sun activity archive for January 2024
Sun activity archive for January 2024. A daily record of flaring, big filaments and prominences, and other sorts of activity, on our local star.
January 1, 2024
Mystery in the Orion Nebula: Pairs of rogue planets?
The James Webb Space Telescope has discovered something unexpected in the Orion Nebula: pairs of unusual planet-like 'binary objects' drifting freely in space.
December 31, 2023
How many recipes for life in the universe?
Researchers in Wisconsin are searching for and testing new chemical recipes for the origin of life. Such recipes for life may be common in the universe.
December 31, 2023
