NASA's Parker Solar Probe, currently studying the sun, has observed the entire dust ring that encircles the sun along Venus' orbit. It is the first complete view of this dust band from any spacecraft.

But will you see them? Mercury and Venus are now low in the west after sunset, near the sunset glare. Try to spot their furtive rendezvous at evening dusk April 24, 25 and 26, 2021.

Astronomers saw Proxima Centauri - the star nearest our sun - emit a flare, or burst of radiation, 100 times more powerful than flares from our sun. They said Proxima's flare ranks as one of the most violent seen on a solitary star anywhere in the galaxy.

The launch of Crew-2, the 2nd flight of this particular Crew Dragon, went off without a hitch Friday morning, after being postponed due to weather.

Researchers have found a connection between earthquakes in Taiwan and its dry and rainy seasons.

From nuclear weapons to biowarfare to cyberattacks, humanity has much to overcome. Martin Rees and Frederick Lamb discuss the obstacles we must face as we look forward to humanity's future on Earth.

Take 3 minutes to watch a feel-good video of a team of responders saving a humpback whale in distress.

Venus and Mercury are back in the evening sky. Have you seen them? Probably not; they're exceedingly close to the sun. But EarthSky Community member Helio Vital did manage to capture a photo of Venus on April 19, 2021. Way to go, Helio!

On April 17, 2021, the New Horizons spacecraft passed 50 astronomical units - 50 times Earth's distance from the sun - while speeding toward interstellar space. It also captured an image of another earthly spacecraft, even farther out.

During 2.4 million years of existence, a total of 2.5 billion Tyrannosaurus rex lived on Earth, and 20,000 individual animals would have been alive at any moment, according to new calculations.