New Hubble Space Telescope video zooms in on Trumpler 14, a young cluster of hot, massive, bright stars - some of the most luminous stars in our Milky Way galaxy!
Australian astrobiologists say an early Armageddon on most distant worlds makes advanced lifeforms unlikely. If true, our Milky Way galaxy is a lonely place.
If it exists, the 9th planet has 10 times the mass of Earth - orbits 20 times farther from the sun than Neptune - and takes 20,000 years to orbit the sun once.
MIRA Public Observatory and Studio Brussels say they have 'registered a constellation' named for the late, beloved rock musician. Hmm, says astronomer Guy Ottewell.
The supernova was as bright as 570 billion of our suns and some 20 times as luminous as the entire output of the 100 billion stars of our Milky Way galaxy.