These ancient crocodiles walked on 2 legs like dinosaurs

Researchers suggest 110-120 million year old fossil footprints were made by ancient crocodiles that walked on 2 hind legs about the same length as adult human legs.

Moon and Venus beautiful before sunrise July 16-19

These next several mornings - July 16, 17 and 18, 2020 - enjoy the waning crescent moon, the queen of the night, pairing up with Venus, the queen planet.

To find giant black holes, start with our solar system’s center

A new study from researchers at Vanderbilt University suggests that to find the most massive black holes, measure the effects of their gravitational waves on the flashes of light coming from pulsars. The best location to do that is at the precise gravitational center of the solar system.

Mercury in the July morning sky

Mercury is only modestly-bright in mid-July 2020, but let the waning crescent moon and the planet Venus help you to locate Mercury near the horizon as darkness gives way to dawn. If you can't see this world with the eye alone, try binoculars!

Journey of Venus

A composite image - made of photos acquired over 500 days - showing the waxing and waning of Venus, and the changing size of the planet's visible disk, as it orbits the sun one step inward from Earth.

Insights on Jupiter at opposition

Like so much in astronomy, Jupiter's opposition happens in a way that's cyclical. And the cycle of oppositions for Jupiter is especially pleasing to the mind. Astronomer Guy Ottewell offers his insights - and chart-making skills - to you during this 2020 opposition of our solar system's largest planet.

A proposed new mission to Venus

The proposed VERITAS mission to Venus is one of the finalists for NASA's Discovery Program. If selected, it will revolutionize our knowledge about the planet's geology and how this formerly habitable world became a fiery wasteland.

Physicists say they’ve found a ‘tetraquark’

On July 1, scientists announced the discovery of a new exotic particle - a so-called “tetraquark” - a finding that marks a major breakthrough in a search of almost 20 years, carried out in particle physics labs all over the world.

Nishinoshima volcano belches ash and lava

A young volcanic island in the western Pacific Ocean has been going through a vigorous growth spurt since mid-June 2020.

Moon and Mars from midnight until dawn

Jupiter dominates over the July evening sky, staying out from dusk until dawn. Venus, the sky's brightest planet, lords over the eastern sky at dawn. Mars is roughly midway between Jupiter and Saturn. It's near the moon on the mornings of July 11 and 12, 2020.