April’s planetary parade has fewer planets. Only four will line up: Venus, Saturn, Mercury and Neptune. April's parade of ...

If you can find a view low to the western horizon on Monday, March 10, you may see a rare conjunction between Venus and Mercury — the two planets interior to Earth in the solar system — before ...

Also in the morning sky is little Mercury, but traditionally for Northern ... so), it's positioned on the far side of the sun as seen from Earth and through telescopes its disk appears quite ...

How can we successfully collect and return samples from Mercury and Venus to Earth? This is what a recent study presented at the 56th Lunar and Planetary Science Conference hopes to address as a pair ...

Mercury ' s inner core is solid and about the same size as Earth ' s inner core, a new study using observations from NASA's MESSENGER mission has indicated. Mercury is the smallest planet in our ...