View larger. | The Mars Express orbiter saw this elongated cloud streaming away from the Arsia…
Category: Earth Sky
Dark matter black holes could make Mars wobble
An artist’s depiction shows a black hole (at left) flying past Mars (right). If dark matter…
Scientists recreate exotic Martian ‘spiders’ for 1st time
View larger. | Martian ‘spiders‘ in the south polar region. NASA’s Mars Reconnaissance Orbiter (MRO) took…
Space junk with Jonathan McDowell
At 12:15 p.m. CDT (17:15 UTC) on Monday, September 16, 2024, we’ll talk live about space…
Black hole duo will merge in a distant galaxy
Artist’s concept of 2 active supermassive black holes at the heart of 2 merging galaxies. Each…
Why are Mars’ polar caps different from each other?
View larger. | Perspective view of Mars’ north polar ice cap from ESA’s Mars Express orbiter.…
Question mark galaxy? Gravity lens creates cosmic graffiti
When, where, how? The cosmos is full of questions. Still, astronomers using NASA’s James Webb Space…
Jupiter’s moon Io has a new volcano! See pics here
Here’s an image of Jupiter’s moon Io from February 2024. The black-and-white inset shows the same…
Earth to get an asteroid mini-moon for 2 months
Newly-discovered #asteroid 2024 PT5 is about to undergo a “mini-moon event” when its geocentric energy becomes…
See the most-detailed star bubbles yet in new video
Watch the motion of star bubbles on the surface of the star R Doradus in the…