Morning Overview on MSN

After 6,000 exoplanets, astronomers spot a mysterious exomoon

After cataloging thousands of worlds beyond our solar system, astronomers are now closing in on a far rarer prize: a moon ...
Morning Overview on MSN

Einstein was right: Mars has its own clock and it runs faster

Time on Mars does not match time on Earth, and the difference is no longer a thought experiment. Precision calculations now show that clocks on the red planet tick measurably faster, confirming a ...