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Spectacular rocket reentry over US West

Observers in the U.S. West saw a disintegrating meteor – a fireball, or extremely bright meteor – on July 27, 2016. It was the reentry of a Chinese rocket body.

A housing complex in Thailand with air conditioners. Image via Chaiwat Subprasom/Reuters

Air conditioning’s big global impact

Higher global temperatures combined with higher global incomes mean more air conditioners. But what do more air conditioners mean?

An experimental rocket test over Scandinavia in 2009, which triggered many UFO reports. Read more about this photo.

If it’s not a UFO, what is it?

Most Unidentified Flying Objects aren’t unidentified at all. Here’s a list of natural and human-made objects in the sky that people frequently mistake for UFOs.

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Moon shadow in 2017 eclipse

Fly along with Earth’s shadow in a video depicting the path of the August 21, 2017 total eclipse of the sun, first eclipse over the continental U.S. since 1979.

Animals that help pollinate plants and spread their seeds are critical to keeping forests healthy. Photo via Eike Lena Neuschulz/ AlphaGalileo.

Healthy forests need birds and bees

A new study shows that we humans can help maintain healthy forests by focusing conservation efforts on the protection of animal pollinators and seed dispersers.

MIT researchers found that neutrinos changed between several distinct “flavors” as they traveled at close to the speed of light from a facility near Chicago to a detector in Minnesota, 456 miles (735 km) away. Image via Christine Daniloff/ MIT/ Phys.org

Shifting identities for traveling neutrinos

MIT researchers show that neutrinos can change between several distinct “flavors” while traveling from a facility near Chicago to a detector in Minnesota.

Kevin Krajick/Lamont-Doherty Earth Observatory

Giant quake may lurk under Bangladesh

A huge earthquake could be building beneath Bangladesh, Earth’s most densely populated nation. There’s potential for some 140 million people to be affected.

Image via NASA Earth Observatory

Paris at midnight

ISS astronaut’s photo of the City of Light.

Artist's concept of derelict satellite capture by net. Image via ESA.

ESA to capture large derelict satellite

The European Space Agency is moving forward with plans to capture and remove a large piece of space debris, in a mission called e.Deorbit, by 2023.

Canadian astronaut David Saint-Jacques. Maybe you have the right stuff, too, 'eh?  Image via CSA.

Canada is recruiting new astronauts

Astronauts wanted! The Canadian Space Agency (CSA) is actively recruiting for first time since 2008. Applications are open until mid-August.

The extra second - or leap second - is added to world clocks one second before midnight, UTC.

2016 will have a leap second

Delay those New Year’s plans. World timekeepers have announced they’ll add a leap second just before midnight on December 31, 2016.

Image via Galyna Andrushko / shutterstock / theconversation

Looking for a pristine landscape? Sorry …

If you’re hoping to escape civilization and head into an unaltered wilderness, you might be surprised to learn it no longer exists on Earth, a study says.

spix's macaw birdlife international

16-year-old spots rare bird in Brazil

It was Grandpa Pinpin’s dream to see his favorite bird, Spix’s Macaw, before his death at 94. He didn’t accomplish it, but his 16-year-old granddaughter did.

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Man-made chemicals in deepest sea

Scientists have detected persistent man-made chemicals in crustaceans from the Mariana Trench and Kermadec Trench, deepest parts of the ocean ever sampled.

This artist's rendering shows NASA's Juno spacecraft making one of its close passes over Jupiter. Image via  NASA/JPL-Caltech

Success! Juno is orbiting Jupiter

After a 5-year voyage, Juno performed a successful braking maneuver on July 4. First spacecraft to enter Jupiter orbit since Galileo in the 1990s.

Image via Juan Ramon Rodriguez Sosa/Flickr.

How fireworks get their colors

The colors in fireworks help create “ohhhhs” and “ahhhhs.” But what creates the colors?

A ray of hope for Antarctica ozone depletion, via soslsd.org.

Antarctic ozone shows signs of healing

Scientists at MIT and elsewhere say that the Antarctic ozone hole shows signs of shrinking. They say they expect it to close permanently by mid-century.

Image via Debbie Lewis

Asteroid Day 2016 is June 30

Hundreds of events – films, concerts, panels with engineers, scientists and astronauts – about asteroids and how to protect our planet from asteroid impacts.

Asteroids in Earth's neighborhood of the solar system today, via Armagh Observatory.

Known asteroids near Earth today

The first map shows all the known asteroids within one-third of Earth’s distance from the sun today – Asteroid Day – June 30, 2016. Look below for a second map.

Image via Las Cumbres Observatory

Join astronomers in tracking asteroids

Sign up to trigger asteroid observations on a global telescope network on Asteroid Day, June 30. Anyone can help! Sign up by 00:00 UTC on July 1.