Learn more about galaxies NGC 4532 and DDO 137 and how an intergalactic gas bridge joins the two.
A 50-million-light-year-long flow of hydrogen gas has been observed linking two tiny galaxies 50 million light-years away, ...
Determining the nature of dark matter, the invisible substance that makes up most of the mass in our universe, is one of the ...
The world’s best clocks may be sensitive to an odd mix of quantum and relativistic effects that would stretch time and test ...
Time-varying systems, materials with properties that change over time, have opened new possibilities for the experimental ...