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Latest News
From around the web
The Sky Today on Tuesday, October 21: The Orionids peak, Comet Lemmon is closest to Earth, and Titan makes a transit
Tue October 21st, 2025
New moon of October 2025 hides red star Antares for some lucky stargazers tonightMon October 20th, 2025
Hubble spies a glowing 'starburst ring' | Space photo of the day for Oct. 20, 2025Mon October 20th, 2025
Don't miss the Orionid meteor shower peak begin overnight tonight under a moonless skyMon October 20th, 2025
A cosmic heart bursts with light in new deep space astrophotographer portrait (photo)Sun October 19th, 2025
Images from the Mars Perseverance Rover – Photo stream updated daily!
Camera: Front Hazard Avoidance Camera - Left
Earth Date: Tue February 4th, 2025
Sol: 1409
Camera: Front Hazard Avoidance Camera - Left
Earth Date: Tue February 4th, 2025
Sol: 1409
Camera: Front Hazard Avoidance Camera - Left
Earth Date: Tue February 4th, 2025
Sol: 1409
Camera: Front Hazard Avoidance Camera - Left
Earth Date: Tue February 4th, 2025
Sol: 1409
NASA's Astronomy Picture of the Day (July 15th, 2026):
Red Sprites in the Tatacoa Desert
From NASA: "Is there an angry Sith using force lightning in the Tatacoa Desert? This is not science fiction, but a red sprite with multiple streamers! Ordinary lightning occurs when thundercloud particles collide, lose their electrons, and build up negative charge at the cloud bottom. The cloud’s negative charge repels negative charge deeper into the Earth, leaving Earth’s surface positively charged. The opposite charges attract, reaching towards each other and superheating the air into a white strike of plasma. Red sprites are millisecond events triggered by positive cloud-to-ground lightning. They extend up into the mesosphere where the air is too thin for thunder. Their red glow comes from heated molecular nitrogen. There are several potential causes for red sprites, including that the preceding positive lightning exposes the negatively charged cloud core to the positively charged upper atmosphere, allowing those charges to connect. NASA’s Juno has observed sprites on Jupiter, indicating that sprites occur on other planets!"