A small asteroid was visible in northern Siberia on Tuesday, as it closed in on its collision course with Earth. It's the first of two expected asteroid fly-bys this week.

World Asteroid Day 2025 is upon us! Here's how you can celebrate the event by livestreaming real-time views of near-Earth ...

Astronomers estimate that an asteroid this large comes this close to Earth only about once every 7,500 years. It also appears ...

Today in the history of astronomy, an asteroid flattens 830 square miles of Siberian forest.

The United Nations General Assembly adopted a resolution in December 2016, declaring June 30 International Asteroid Day.

The Tunguska asteroid event in Siberia, Russian Federation, on 30 June 1908, was the Earth's largest asteroid impact in recorded history.

The United Nations formally adopted Asteroid Day in 2016. The decision followed a proposal from the Association of Space ...

World Asteroid Day is observed every year on June 30 to raise awareness about asteroids and the potential hazards they pose ...

115 years ago, an asteroid flattened a remote area of Siberia. Get the Popular Science daily newsletter💡 Breakthroughs, discoveries, and DIY tips sent every weekday. Search for: ...

The mysterious blast site of the Tunguska Event of 1908 is revealed in satellite images obtained by NASA’s Operational Land ...

Meteor Crater and Lowell Observatory invite the public to observe the unique benchmark with a day of educational activities.

The designation is already used in other parts of the world to raise awareness for space science and planetary defense.