One of the first creatures to step on land could not have walked on four legs, 3D computer models show.

The latest developments in cosmology point toward the possibility that our universe is merely one of billions.

Take five minutes of your time to say that yes, cancer patients, researchers, high school students and people around the country should be able to find out what their taxes already paid for.

"In the long run, I would still be more concerned about the impact of climate change, but this work shows that even if we stabilise the climate, we might still get sea level rise due to how we use water."

An "annular eclipse" will be visible from a 240 to 300km-wide swathe of Earth stretching from Asia across the Pacific to the western US on Monday.