Researchers in Europe have now confirmed the universality of free fall - which Einstein called his most fortunate thought - with extremely high precision. To do it, they spent 8 years tracking a triple star system containing a millisecond pulsar.

These next several mornings - June 17, 18 and 19, 2020 - look east before sunrise to see the moon and Venus. You might spot the Pleiades star cluster nearby. On June 19, the moon will occult or cover over Venus. For most of us, the occultation will happen in daylight.

Solar Orbiter swept as close as 50 million miles (77 million km) to our sun's surface. Now scientists are at work testing the spacecraft’s 10 science instruments, including the 6 telescopes on-board. New images, to be released in mid-July, will be the closest of the sun ever captured.

New images from the fringes of our solar system. The fast-moving New Horizons spacecraft sees a parallax shift - a different apparent position against the background stars - for Proxima Centauri.

The world’s largest waterfall is in the ocean, beneath the Denmark Strait.

Researchers from Germany and the US have discovered an exoplanet less than twice the size of Earth orbiting at about the same distance from its star, making it the closest analog to the Earth-sun system known so far.

A bright meteor is called a fireball. This one creates a backdrop to clouds of smoke from an actual fire that - as of Saturday - had burned some 9,000 acres and was only 10% contained, according to Inciweb.

Does evolution always and inevitably generate greater diversity and complexity, having a predictable direction?

Asteroid 2020 LD passed within the moon's distance on June 5, but wasn't discovered until June 7. It's the 45th known and the largest asteroid to sweep within a lunar-distance of Earth so far in 2020.

Enjoy the early morning sky on June 12 and 13, 2020, as the moon swings 3 degrees south of the red planet Mars. Meanwhile, although your eye won't catch it, Mars will swing 1.7 degrees south of distant Neptune.