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A network of life-supporting rivers for Mars?
Could there once have been a network of life-supporting rivers for Mars? A study from Penn State suggests Mars' rivers might once have been common.
November 1, 2023
Anticrepuscular rays: How to see them
If you want to see anticrepuscular rays, look carefully opposite the direction of the sun. They are most often seen at sunrise or sunset.
November 1, 2023
Sun activity archive for November 2023
Sun activity archive for November 2023. A daily record of flaring, big filaments and prominences, and other sorts of activity, on our local star.
November 1, 2023
Surprise! Plate tectonics helped create Venus’ hellscape
Scientists have long thought that Venus never had plate tectonics. But a new study suggests it did early on, which created the atmosphere we see today.
October 31, 2023
SpaceX wraps up Starlink launches for October
SpaceX's final Starlink launch for the month took flight from Florida at 23:20 UTC on October 30, 2023. Learn more here.
October 30, 2023
Hunter’s Moon eclipse photos October 28-29, 2023
The Northern Hemisphere's Hunter's Moon for 2023 was last night. It was near Jupiter. And some parts of the world saw an eclipse. Hunter's Moon eclipse photos here!
October 29, 2023
New coral reefs and seamounts discovered in the Galápagos
Scientists on a research vessel exploring the Galápagos Islands discovered two deep-sea coral reefs and two previously uncharted seamounts.
October 29, 2023
Space vehicle reentries shed exotic metal particles to Earth’s atmosphere
NOAA studies made of Earth's stratosphere suggest that space vehicle reentries shed exotic metal particles in Earth's atmosphere.
October 29, 2023
Deneb Kaitos marks the tail of Cetus the Whale
Deneb Kaitos is the brightest star in the constellation Cetus the Whale. It's at its highest in the sky on October and November evenings.
October 28, 2023
Some will see a partial lunar eclipse tonight
A shallow partial lunar eclipse takes place on October 28, 2023, visible in Europe, Africa, most of Asia and western Australia. Jupiter is the bright object nearby. Maps and details here.
October 28, 2023
