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EarthSky Voices

Space

3 years of the Webb telescope: Here’s what it’s discovered

In the 3 years since it was launched, Webb has made a host of intriguing discoveries. Here's a rundown of its most important findings so far.
Human World

Animal spies: The world’s most bizarre secret weapons

Governments have long relied on animal spies for covert operations, enlisting pigeons, cats and, recently, a beluga whale.
Space

When you wish upon a star, is it already dead?

Some cynics say that when you wish upon a star, that star is already dead. But don't listen to them! The stars you can see, and your dreams, are perfectly safe.

Mars starts a new year: avalanches, icy explosions and dunes

A new and explosive year began on Mars on November 14, 2024. NASA and its partners are tracking the season's strange and unique features.

Peering down at star-shaped cities from space

Satellites in space give us a clear view of these star-shaped cities in Europe. Read more about these cities, which are hundreds of years old, here.

Why does an evergreen tree have a pyramid shape?

Those who admire the pyramid shape of an evergreen tree might enjoy knowing that its shape has evolved in response to wind, snow, and light.
Space

ESA’s 2025 calendar: Best of Hubble and Webb

The European Space Agency has announced its 2025 calendar, featuring the best images from Hubble and Webb from the past year. And it's free for you to download!

How to catch a supernova explosion before it happens

Astronomers are looking for signals that a star is about to go supernova. Some stars give no warning while others have slowly brightened before exploding.

NASA’s Lucy spacecraft skimming Earth’s atmosphere today!

The Lucy spacecraft will make a close approach to Earth today. Its 6-year mission will carry it through the main asteroid belt and into the orbit of Jupiter.

What if we find alien life and don’t recognize it?

Astrobiologists are exploring how complexity arises in the universe to build frameworks for recognizing alien life when we finally find it.