The scientists call them "xenobots." They are tiny living robots assembled from the cells of frogs. Their creators promise advances from drug delivery to toxic waste clean-up.
This image is part of a wider system of depressions that spiral outward from the very center of Mars' north pole. Seen in context, you can see rippling troughs that curve and bend and slice outwards from the pole counterclockwise.
The Hubble Telescope released this glorious image of the spiral galaxy UGC 2885 on January 6. This image was made in part as a tribute to dark matter pioneer Vera Rubin.
So far, there've been no reports of casualties or major damage from the event that began Sunday. At this writing, the alert level has been raised to 4: “an imminent hazardous eruption."
When you see concentric colored rings around a sunset, you might want to grab a tissue. This atmospheric phenomenon results from an abundance of uniformly sized pollen grains, drifting in the air.
El Popo erupts! Well, it erupts often, but Thursday morning's eruption - which happened at sunrise - was a beauty. El Popo is the nickname for Mexico's most active volcano, Popocatépetl, near Mexico City. The eruption Thursday caused officials to issue a yellow alert.
A newly found young star cluster on the outskirts of our Milky Way seems to be made of material from the Magellanic Clouds. It appears the collision between the Clouds and our Milky Way may already be starting.
When the 2 stars in the binary star system V Sagittae come together - around the year 2083, astronomers say - they'll create a star explosion called a nova. Then V Sagittae will temporarily outshine all the stars in our Milky Way galaxy.
USGS reports that the strong earthquake in Puerto Rico this morning was "widely felt." Strong to very strong shaking occurred across parts of southern Puerto Rico closest to the event, and moderate shaking occurred across the rest of the island.
Deborah Byrd (asteroid 3505 Byrd) helps edit EarthSky.org and is a frequent host of EarthSky videos. Deborah created the EarthSky radio series in 1991 and founded EarthSky.org in 1994. Prior to that, she had worked for the University of Texas McDonald Observatory since 1976, and created and produced their Star Date radio series. She has won a galaxy of awards from the broadcasting and science communities, including having an asteroid named in her honor in 1990, a Public Service Award from the National Science Board in 2003, and the Education Prize from the American Astronomical Society in 2020. A science communicator and educator since 1976, Byrd believes in science as a force for good in the world and a vital tool for the 21st century. "Being an EarthSky editor is like hosting a big global party for cool nature-lovers," she says.