Still Not Heavy Enough

Not only the observable universe is not heavy enough to explain its current configuration, but calculations show that the previously thought mass is actually smaller by 10 to 20 percent, which brings even more questions into discussion. The subject involving the mass of the observable univers... [ read more >> ]

Whirlpool Galaxy

Image comment: Whirlpool Galaxy
Image credits: NASA and The Hubble Heritage Team (STScI/AURA) Acknowledgment: N. Scoville (Caltech) and T. Rector (NOAO)

Whirlpool Galaxy