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June 2018 ties for 3rd-warmest June on record

June 2018 continued the warming trend of the past 40 years. Plus, a word about the climate change myth that there’s been no warming since 1998.

Whoa! Flash flood footage from Utah

Amazing flash flood footage from Utah, July 16, 2018.

Listen as Saturn and its moon interact

Spacecraft observations reveal plasma waves moving from Saturn to its rings and its moon Enceladus. Researchers converted a recording of the plasma waves into an audible cosmic whoosh that you’ll enjoy.

Uranus, Neptune, Pluto: A longer view

Beloved astronomer Guy Ottewell announces his newest book.

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See it! Last night’s moon and Venus

Photos from EarthSky friends around the world of Sunday evening’s spectacular moon and planet Venus, and Saturday’s moon and Mercury. Thanks to all who submitted or posted to our Facebook page! Miss then? Try again Monday.

Astronomers find ‘ghost dunes’ on Mars

Robot orbiters circling Mars have acquired images of ghost dunes. They’re pits where, scientists believe, tall crescent-shaped sand dunes once existed on this red desert world.

All you need to know: Delta Aquariid meteors in 2018

With the long-running Delta Aquariid meteor shower already in progress, and the moon in a waxing crescent phase – and gone from the sky after midnight – we’re beginning to receive meteor photos.

Innovative new instrument to seek habitable worlds

A new infrared instrument on a telescope in Hawaii will let astronomers find more exoplanets orbiting red dwarf stars. The discoveries may include rocky worlds that are potentially habitable.

Ghostly neutrino caught in South Pole ice ushers in a new astronomy

Last week, scientists announced the 1st known source for ghostly, high-energy neutrinos. The source is a blazar, a billion-solar-mass black hole 3.7 billion light-years away. The discovery establishes a new way to study the universe.

5 things we know – and 5 we don’t – about ‘Oumuamua

Mysterious ‘Oumuamua is the 1st confirmed interstellar object to pass through our solar system.

Mars! Mars! Mars!

The best time to see Mars since 2003 is now! Watch for Mars as the extremely bright red “star,” ascending in the east by mid-evening and crossing the sky for the rest of the night. Photos from the EarthSky community here.

Asteroid 2017 YE5 turns out to be double

Asteroid 2017 YE5 swept by Earth in late June. Turns out, it’s a double asteroid, with both bodies almost identical in size and not touching – only the 4th such object ever detected.

How the moon’s orbit makes supermoons

An explanation of why extra-close perigees and extra-far apogees happen at new and full moons.