Astronomy

The Universe is flat. Here’s what that teaches us. 
ocean planet
Newly discovered exoplanet may be first covered in liquid water 
A new nova disappeared faster than ever, and an even bigger cosmic catastrophe is coming 
black hole sound
Listen to the sound of a black hole, remixed by NASA
icy moon europa clipper
NASA thinks it may snow upside down on Europa 
satellite mega constellations
Earth’s orbit is about to get way more crowded
jwst images
7 spectacular lessons from James Webb’s first deep-field image
Black hole mergers obey the laws of thermodynamics
before and after james webb
James Webb’s first science images: before-and-after 
webb first science
James Webb’s record-breaking first science image: explained