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Posts by EarthSky

cropped-Black-hole-stellar-companion
Science Wire | Jun 30, 2015

Black hole wakes up after 27 years

On June 15, a monster black hole started showing signs of extraordinary activity that hasn’t happened since 1989. Astronomers around the world are watching.

wine_glasses
FAQs | Videos | Jun 27, 2015

Can a human singing voice shatter glass?

Not just any loud sound will shatter a glass. It has to be the right resonant frequency.

MIT researchers have successfully cooled a gas of sodium potassium (NaK) molecules to a temperature of 500 nanokelvin. llustration credit: Jose-Luis Olivares/MIT
Science Wire | Jun 24, 2015

MIT scientists set record for coldest molecule

Scientists have cooled a molecule down to 500-billionths of a degree above absolute zero, a million times colder than interstellar space.

Summer solstice sunrise.
Science Wire | Jun 21, 2015

Summer solstice seen from Stonehenge

Why do people gather at Stonehenge in England on the solstice? Info and photos here.

Earth from space in northern summer via NASA
Science Wire | Jun 20, 2015

Watching solstices and equinoxes from space

How sunlight falls on Earth’s surface during the solstices and equinoxes, as seen from geosynchronous orbit.

Artist's impression of a volcano erupting on Venus. Whether Venus really is active today is a hot topic in planetary science. Image credit: ESA - AOES Medialab
Science Wire | Jun 18, 2015

Hot lava flows discovered on Venus

Researchers have found new evidence that some Venusian volcanoes may still be active

robot-dog
Science Wire | Jun 18, 2015

A robotic dog’s mortality

When Sony stopped manufacturing replacement parts for its Aibo pet robot, owners scrambled to save the robot-dogs that had become part of their families.

Photo via Eric Rolph at Wikimedia Commons
Science Wire | Jun 16, 2015

Can you see a whole circle rainbow?

It’s possible to see the whole circle of a rainbow – but sky conditions have to be just right. Plus you have to be up high!

jupiter-venus-june-2015
Science Wire | Jun 15, 2015

Don’t miss jaw-dropping Venus/Jupiter encounter

Venus and Jupiter are converging for a must-see close encounter at the end of June. It could be the best backyard sky show of 2015.

Pluto from New Horizons, late May and early June, 2015.
Science Wire | Jun 12, 2015

Faces of Pluto emerge in new images

As the New Horizons spacecraft speeds closer to its July flight through the Pluto system, we’re seeing an increasingly complex surface. Best views yet.