One summer night in 1877, American astronomer Asaph Hall was looking through his telescope in Washington, D.C. Mars was at its closest point to Earth in its orbit, and Hall had one question on his ...

The Moon passes 1.4° north of Mars at 6 A.M. EDT; the two are visible together this evening, slowly setting in the western sky and visible for a few hours after sunset. Both now lie in western Leo, ...

When Earth is opposite Mars from the sun, it will appear full because you’re looking directly on the daylit side. But mitigating this is its far greater distance, plus the fact that Earth appears much ...

Two rare twilight pairings will grace the June 2025 sky as the moon first passes close to elusive Mercury and then gets stunningly close to Mars. Mercury is typically difficult to see and the ...