Two Galaxy Centers in Terrifyingly Fast Orbits
At the center of the Milky Way Galaxy, there is a supermassive black hole. This is normal — at the center of almost every galaxy there is…
Category: What is out in space?
What is matter and dark matter? What kinds of things happen in space? What do we know about the physics in space?
Seven Earth-sized Planets Found
Today, Nature published the landmark discovery of a system of seven planets around a star named TRAPPIST-1 about 40 light years away. This…
Life Under a Black Sun
Did you know that a black hole is a kind of star? What would it really be like if our sun, also a star, was a black hole?
Could Life Thrive on Radiation? Scientists Say It’s Possible
All life on Earth survives because of the sun. Plants use a process called photosynthesis to transfer energy from the Sun’s rays into the…
Stray stars between galaxies add to the cosmic light in the universe
Using an experiment carried into space on a NASA suborbital rocket, astronomers at Caltech and their colleagues have detected a diffuse…