The king planet Jupiter reaches its equinox on May 2, 2021, an event that always causes mutual events of Jupiter's 4 major moons. It's an eclipse season of the moons.

A list of 10 new ocean species discovered in 2020.

Lightning strikes - perhaps a quintillion of them, occurring over a billion years - might have provided sparks of life for the early Earth by unlocking phosphorus, says new research.

This spectacular image features spiral galaxy Messier 106 and its diminutive neighbors, as well as a dense field of background galaxies and foreground stars.

With the moon waning, those in the Northern Hemisphere might glimpse the mysterious zodiacal light in the west after true darkness falls. Southern Hemisphere? Look east before dawn.

A lot, or even most, of Mars' ancient water remains trapped inside the planet's crust instead of being lost to space, according to a new study from NASA's Jet Propulsion Laboratory and Caltech.

Physicists at the LHCb Collaboration at CERN have found particles not behaving the way they should according to the guiding theory of particle physics. Could it be evidence of a brand new physics?

A new theory about 'Oumuamua suggests the weird object that passed through our solar system in 2017 was a remnant of a Pluto-like world from another solar system. As one scientist said, "‘Oumuamua may be the first piece of an exoplanet brought to us."

The whole globe enjoys a full-looking moon on March 27 and 28, 2021. No matter where you live worldwide, watch for the first full moon of the season to shine from dusk until dawn.

The golden hour - actually, more like 30 minutes - is that magical period of daylight shortly after sunrise or before sunset, when the brightness of the sky matches streetlights, signs and car headlights. Photographers love it!