Chelyabinsk Asteroid: 19 metres, 12 000 tonnes

Nov 07
The asteroid that smashed into the city of Chelyabinsk measured 19 metres in diameter before exploding into small pieces between the altitudes of around 45 and 30 kilometres with the energy equivalent to several dozens of Hiroshima atomic bombs. After analysing video and audio footage and meteorite fragments recovered from the incident that occured on February 15, 2013, a scientist from Czech Republic, Jiri Borovicka from the Academy of Sciences, estimated that the asteroid may

UN adopts Asteroid Defense Policy

Oct 31
The first-ever international contingency plan for defending Earth against an asteroid strike will be implemented following the recent U.N. General Assembly meeting. Measures to coordinate detection and response to asteroid strikes will be put into place with the creation of an International Asteroid Warning Network. Image: Alamy The International Asteroid Warning Network (IAWN) will comprise of scientists, observatories, and space agencies around the planet to pool information about newly discovered asteroids. The asteroid impact in

Astronauts talk about defending Earth from Asteroids

Oct 28
On October 25th, five astronauts from the Association of Space Explorers (ASE) prompted the international community on the need to defend Earth from asteroids. The panel discussion, moderated by Neil deGrasse Tyson, took place just ahead of the United Nations meeting to urge them to adopt an asteroid defense plan. Image credit (L-R):,, Rusty Schweickart, B612 Foundation Photo, Manfred Werner, Former NASA astronauts, Thomas Jones, Russell Schweickart, Edward Lu, together with former

Asteroid to hit Earth in 2032?

Oct 21
An asteroid that sailed past Earth last month is said to return much closer in 19 years. Credit: NASA/JPL-Caltech The asteroid known as 2013 TV135 came within 6.7 million kilometers (or about 17 times as far away as the moon) of Earth, said NASA. The asteroid was discovered by Ukrainian astronomers just 10 days ago; well after its close encounter with Earth on September 16. While astronomers believe that its orbit will bring it back