Although Mercury was geologically active in its early days, today its surface appears almost completely static. This is why ...

Learn about the bright streaks that may represent recent geological activity on Mercury, which has been considered a dead ...

The smallest planet in our Solar System may be hiding a big secret. Curious bright streaks on Mercury's surface, doodled on ...

For decades, Mercury has been seen as astatic, heavily cratered planet, a relic of early Solar System history. Its surface, ...

The team found that the lineae occurred preferentially on the Sun-facing slopes of the younger impact craters. This suggests ...

Starting Jan. 21, Canadians can see a rare celestial event as six planets line up in the evening sky, mostly visible to the ...

Australian researchers have made a discovery of a potentially habitable planet 150 light years away - but there’s a catch to ...

A rare triple conjunction of Venus, Mars and Mercury is happening on the opposite side of the solar system to where Earth is, ...

Solar wind sounds poetic, but it's a very real and powerful phenomenon, connecting the Sun to every part of our solar system. Unlike the wind we feel .

The snow moon, February's full moon, will peak Sunday, Feb. 1, and a lunar eclipse will occur March 2-3. Here's what to know.

While Mercury was quite active in its early days, it has been perceived as dead for a long time because of the static appearance of its surface.

Four of the planets, which are Mercury, Venus, Jupiter and Saturn, are bright enough to be spotted with the naked eye in ...