Mercury would burn us and Venus would crush us; only Mars offers conditions that, though challenging, could support long-term human settlement.

Indulge in a sci-fi fantasy of living under the huge Saturn rings. Beware, the tidal forces would tear Earth apart and push life into the twilight zone

For millennia, we’ve looked to the stars for signs of our own end. Yet every so often, what looks like an omen of doom turns out to be a wonderful gift from beyond. When the interstellar comet 3I/ATLAS drifted into our Solar System, it brought with it a cosmic time capsule containing tales older than the Sun.