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Tiny droplets of early universe matter created

Researchers have created tiny droplets of the ultra-hot matter that once filled the early universe, forming 3 distinct shapes and sizes: circles, ellipses and triangles

Huge previously-undetected coral reef off US East Coast

Earlier this year, scientists were surprised to discover a huge forest of coldwater corals off the coast of South Carolina. A scientist aboard the expedition discusses the find.

1st quarter moon is December 15

The 1st quarter moon comes on December 15 at 11:49 UTC. A 1st quarter moon is high up at sunset. It appears half-illuminated, like half a pie. Really, you’re seeing half the moon’s day side.

Ancient water found on asteroid Bennu

NASA’s OSIRIS-REx mission arrived at asteroid Bennu on December 3 and has already made a significant discovery about this small world.

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How to see 2018’s brightest comet

Comet 46P/Wirtanen is closest to the sun today. It’ll be closest to Earth next week. With the moon waxing and casting more light in the sky, the time to see the comet is now. Charts, tips and other info here.

Scientists describe 229 new species in 2018

The list includes neon fish, a fast-spinning spider, moray eels, venomous snakes, and more!

What would a warmer world look like?

According to the recent IPCC Special Report, warming of 1.5°C (2.7°F) is an important threshold for many climate impacts. What might our planet look like with 1.5°C of warming?

Christmas Bird Count starts December 14

Audubon’s annual Christmas Bird Count is one of the longest-running citizen science projects in existence. How to participate.

10 tips for watching the Geminids

#1. Geminid meteor numbers tend to intensify as evening deepens into late night, with the greatest number of meteors likely falling an hour or 2 after midnight. That’s true no matter where you are on the globe.

Voyager 2 enters interstellar space

NASA announced Dec. 10 that for the 2nd time in history, a human-made object has reached the space between the stars.

What will the sun do next?

Many have predicted a weak sunspot cycle in the years ahead, but new work from India suggests otherwise. The work dashes speculations of a sun-induced global cooling of Earth’s climate in the coming decade.

Find the Geminids’ radiant point

Why is the Geminid meteor shower best around 2 a.m.? It’s because that’s when the shower’s radiant point – near the bright star Castor in the constellation Gemini – is highest in the sky.

All you need to know: Geminid meteor shower in 2018

The peak of the Geminid meteor shower is coming up on the mornings of December 13 and 14.