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.

Names for days of the week come from the solar system

The names for the days of the week come from the solar system bodies that the ancients could see in the sky. See a breakdown of the days here.

Blue Origin explosion update: Less damage than expected

Blue Origin CEO Dave Limp gave an update on June 1, 2026, about the explosion that occurred during launch of its New Glenn mega-rocket in Florida.

June birthstone: Pearl, moonstone or alexandrite

June babies ... it is time to choose your June birthstone: pearl, moonstone or alexandrite. All of them are lovely choices.

BOOM over Massachusetts and U.S. East probably a meteor

Many reported a streak across the daytime sky and a boom over Massachusetts and surrounding areas in the US East, probably a meteor.

The 1919 solar eclipse that proved Einstein right

During a May 29, 1919, solar eclipse, astronomers saw the sun bend starlight, proving Einstein's general relativity and catapulting him to rock star fame.

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.