February brings a rare planetary parade, with five bright planets in clear view and a special alignment of Mercury and Saturn ...

Continuing the Artemis program and using its planned lunar space station as a staging post would be a more energy efficient ...

Why does its southern hemisphere rise significantly above the smoother northern plains? A groundbreaking study using seismic ...

New research of a Martian meteorite suggests that water - an essential ingredient for life - arose in hot springs on Mars 4.4 billion years ago, at the same time as it did on Earth.