Tagged: planetary defence

Big Eye Wide, But Shut - Out of Space

Duncan Steel Nov 23, 2020

[avatar user=”duncansteel” size=”thumbnail” align=”right” /] A few days ago the US National Science Foundation (NSF) announced the decommissioning of the Arecibo Observatory in Puerto Rico. This story has been the subject of items in the mass media around the globe, and also in New Zealand. Cables supporting the massive horns and radio receivers above the dish have snapped, the … Read More

Asteroid Day… and what may follow - Out of Space

Duncan Steel Jun 30, 2019

[avatar user=”duncansteel” size=”thumbnail” align=”right” /] The Tunguska explosion in 1908 was due to the arrival of a small (perhaps 50 metre) cosmic object, quite likely a fragment of a known comet. Astronomers are now wondering whether siblings of that projectile might pass close by the Earth over the next week or so.  I write tonight on Asteroid Day, which … Read More

Imagine an asteroid impact due in 2027: How would you tackle it?   - Out of Space

Duncan Steel May 09, 2019

[avatar user=”duncansteel” size=”thumbnail” align=”right” /] It’s now scientifically possible to predict potential asteroid impacts years in advance. But knowing that such a calamitous event is going to occur, due to the clockwork of the heavens, presents its own problems. Can we divert it, and if so, how? Similarly, if the impact is inevitable, can we model what is going to … Read More

Defending the planet from asteroids - Out of Space

Duncan Steel May 02, 2019

[avatar user=”duncansteel” size=”thumbnail” align=”right” /] Astronauts, astronomers, planetary scientists, space researchers and aerospace engineers are meeting near Washington DC to discuss how we might deal with any asteroid found to be heading for a cataclysmic collision with Earth, perhaps causing a global catastrophe. That is, if it was actually found before it caught us unawares.  As I type this I … Read More