It’s time for Manhattanhenge, part 2! Here’s how to see it

Each year around May 28 and July 11, New Yorkers watch for Manhattanhenge, an alignment of the sunset along city streets. Here's how to see it.

Guy Ottewell honored with an asteroid in his name

On July 6, 2026, the IAU honored longtime astronomy educator Guy Ottewell with an asteroid. Thus 21008 (1988 PE) is now also known as asteroid Ottewell.

See 6 major spaceport launch sites … from space!

These 6 major spaceport launch sites helped open the space age. Now, satellites orbiting Earth can look back at the very gateways that sent them there.

How do fireworks get their beautiful colors?

The red, orange, yellow, green, blue and purple colors exploding in the night sky during a fireworks festival are created by the use of metal salts.

July birthstone: The rare and precious ruby

The July birthstone is the ruby, one of the most prized precious stones. It is also one of the hardest gemstones, and is chemically related to the sapphire.

Asteroid Day to be observed worldwide on June 30

The annual Asteroid Day program is in Luxembourg on June 26 and 27, 2026. That's ahead of the internationally recognized Asteroid Day June 30.

3rd batch of Pentagon UAP files: Orbs and more

The U.S. government has released its 3rd batch of Pentagon UAP files. Only a few videos this time, but over 50 documents.

See the International Space Station before it’s gone

The International Space Station has been orbiting our planet since 1998. Here's how to spot the ISS soaring overhead in your nighttime sky.

What is The Hum? Scientists provide an update

For decades, people around the world have reported hearing The Hum. What is it? A new study helps narrow down possible answers.

Celebrate World Oceans Day today, June 8, 2026

World Oceans Day is a day to honor our connection to Earth’s oceans and to learn what we can do to protect ocean habitats. Celebrate World Oceans Day on June 8.

2026 Donation Campaign

If EarthSky has ever helped you discover something new, prepare for an eclipse, spot a planet, or simply inspired a moment of wonder, today is the perfect day to give back. Your donation helps keep trusted science news, expert night sky guides, and independent science journalism free for everyone.

Please help keep EarthSky going by donating today!

Please help keep

EarthSky going!

If you've already donated, we apologize for the popup and greatly appreciate your support.