While the number of known exoplanets continues to grow rapidly, the number of Jupiter-like planets, in Jupiter-like orbits might not be as common as thought.
Is the ultimate fate of our universe dependent on an utterly inexplicable form of dark energy?
In its youth our Moon may once have been bracketed by two asteroidal companions, says a new study. From Earth, these tiny moons – up to 100 km wide – would have appeared as two extremely bright stars.
Was the demise of the dinosaurs 65 million years ago somehow linked to our Solar System’s journey through the galaxy? The way our Sun bounces through the galactic plane may send comets hurtling to Earth, say researchers.