Canadian artist Gustav Hahn painted his impression of what the 1913 Great Meteor Procession looked like.…
Category: Earth Sky
Are grooves on Uranus’ moon Ariel evidence for an ocean?
View larger. | NASA’s Voyager 2 spacecraft captured this view of Uranus’ moon Ariel on January…
Meet Quipu, the largest structure in the universe
The colored dots represent different superstructures out to 800 million light-years (250 megaparsecs) from Earth. The…
Aliens could detect Earth from 12,000 light-years away
A recent study by researchers at the SETI Institute in collaboration with the Characterizing Atmospheric Technosignatures…
What if Bennu hit Earth? Simulations suggest catastrophe
What if Bennu hit Earth? The asteroid has a 1-in-2,700 chance of hitting our planet in…
Boom! Galaxy with 9 rings nicknamed the Bullseye
This ringed galaxy with 9 rings – known previously as LEDA 1313424 – has been nicknamed…
KA-BOOM! Mars shakes when meteors hit its surface
A rock from space slammed into Mars in February 2021, causing seismic waves that reached NASA’s…
Possible smallest exoplanet found … and it orbits a pulsar
View larger. | Artist’s concept of the 3-star system containing the pulsar called PSR J0337+1715. New…
Lightsails, and the audacious plan to reach the stars
In recent decades, technological advances have opened up the possibility of light-powered space travel at a…
Is the moon geologically dead? Maybe not, says new evidence
NASA’s Lunar Reconnaissance Orbiter captured this mosaic image of the far side of the moon. For…