Europa’s entire icy shell shifted 70-degrees a few million years ago
The mysterious world Europa, the ice-covered second moon of Jupiter, sports deep scars that cut across its face. An international…
Beyond “Fermi’s Paradox” VIII: What is the Zoo Hypothesis?
Another possible resolution to the Fermi Paradox: we could all be living in some giant "nature preserve" where the aliens…
James Webb is Working Perfectly! On the Ground. Next Trick: Doing it From Space
The James Webb Space Telescope recently passed another critical milestone - the Ground Segment Test - and is on track…
SpaceX is Going to Hop Starship Again This Weekend
SpaceX has a busy weekend ahead with three missions scheduled for Sunday, including a 150 m hop test with the…
Supernova Wreckage is Still Expanding at Extreme Speeds After 400 Years
The gas and dust cast off by a supernova explosion keeps moving at a high speed for centuries.
Astronomers find 100 brown dwarfs in our neighborhood
Brown dwarfs are smallish objects sitting somewhere between stars and planets, making them notoriously hard to find. But a recent…
Beyond “Fermi’s Paradox” VII: What it the Planetarium Hypothesis
In this installment, we explore the possibility that we haven't heard from aliens because they've got us in a simulated…
Comet NEOWISE Was Spiraling and Spinning as it Passed by Earth
Earlier this week, we shared an image of Comet NEOWISE (C/2020 F3) taken by the Hubble Space Telescope. And now,…
Did a supernova cause the Devonian mass extinction event?
359 million years ago the Earth suffered one of its worst extinction events, and a team of researchers at the…
There Could Be More Rogue Planets Than Stars in the Milky Way. Here’s How Nancy Grace Will Find Them
Rogue planets are notoriously hard to detect, unless you’re the Jedi in an Extended Universe novel. So far we have…