A galaxy cluster once thought to be “dead” is unexpectedly forming stars at an astonishing rate, challenging established ...
Artist's concept of light flares along Sag A*'s accretion disk. (Credit: NASA, ESA, CSA, Ralf Crawford (STScI)) ...
This NASA/ESA Hubble Space Telescope image depicts the cosmic tangle that is MCG+05-31-045, a pair of interacting galaxies located 390 million light-years away. UGC 1810 and UGC 1813 are spiral ...
We typically think of the Oort cloud as scattered ice balls floating far from the sun, yet still tied to it gravitationally.
In 1974, science fiction author Larry Niven wrote a murder mystery with an interesting premise: Could you kill a man with a ...