If you could look down on the solar system plane from above on May 21, 2021, you'd see that the sun, Earth and Jupiter form a 90 degree angle in space, with our planet Earth at the vertex of this angle.

New research shows that a small dinosaur called Shuvuuia deserti, which lived in the deserts of what's now Mongolia, had exceptional night vision and hearing, similar to modern day owls and other night predators.

The Lunar Crater Radio Telescope is now moving into Phase 2 of development. It'll be built by robots, into a natural bowl-shaped crater on the moon's far side. If completed, it'll be the largest radio telescope in the solar system.

The upcoming eclipse season - featuring a total eclipse of the moon in late May 2021 and an annular or ring eclipse of the sun in early June - is unusual for featuring a short lunar eclipse and relatively long solar eclipse. Here's how to understand it in the context of 1,000 years of eclipses.

This evening - May 19, 2021 - the moon is at or near its 1st quarter phase, shining rather close to Regulus, the constellation Leo the Lion's brightest star.

What a catch! This EarthSky community member caught the International Space Station (ISS) slicing across the night sky on May 17, 2021, passing Polaris, the North Star.

Stone Age artifacts excavated near the shores of Lake Malawi in eastern Africa, combined with evidence drawn from the lakebed itself, provides the earliest evidence of ancient humans using fire to enhance their world.

Scientists have found a surprising modern-day symbiosis between 2 undersea animals, which had been gone from the fossil record for 270 million years.

With an unobstructed horizon in the direction of sunset, there's a good chance that'll you spot Mercury with the eye alone in mid-May 2021. Look for it above bright Venus in the west, an hour or so after the sun goes down.

We think of earthly life as evolving from the sea. But newly discovered microscopic "ball" fossils - found in ancient lake sediments in Scotland - suggest that evolution from single-celled to multicellular organisms might have occurred in lakes.