|
|
Thread Tools | Display Modes |
#1
|
|||
|
|||
Scientists Map Out How to Nudge Small Asteroids into Earth’s Orbit
"The notion of an asteroid headed for Earth is typically seen as a bad omen.. On
the flip side, some scientists and entrepreneurs increasingly see this scenario as a potential opportunity. Deliberately redirecting asteroids to our planet’s vicinity could enable us to study them up close, or even mine them. Given that these objects are packed with valuable resources, building a collection of them nearby could spark major advances in spaceflight, to say nothing of the scientific research that might result from easy access to these extraterrestrial bodies. A recent paper published in Acta Astronautica suggests that asteroids could be captured in Earth’s orbit with aerobraking, a maneuver that uses atmospheric drag to decelerate and position objects in stable trajectories around a planet. Aerobraking has helped place interplanetary spacecraft in orbit around Mars and Venus, and to slow down spacecraft returning to Earth. Led by Minghu Tan, a PhD student at the University of Glasgow, the paper immediately addresses the most obvious concern with this scenario: What if there’s some mistake in the redirect process and an asteroid accidentally impacts Earth? It’s bad enough that the dinosaurs were oblivious to their doomsday space rock, but it would be especially embarrassing if we humans smack ourselves in the face with one." See: https://motherboard.vice.com/en_us/a...o-earths-orbit |
Thread Tools | |
Display Modes | |
|
|
Similar Threads | ||||
Thread | Thread Starter | Forum | Replies | Last Post |
Scientists Find Asteroids Are Missing... | dlzc | Astronomy Misc | 5 | March 21st 09 10:30 PM |
Large Meteors Asteroids Comets Small Planets | G=EMC^2 Glazier[_1_] | Astronomy Misc | 3 | December 2nd 07 05:41 PM |
Scientists Working to Deflect Asteroids Threatening Earth | nightbat[_1_] | Misc | 4 | February 24th 07 01:43 AM |
Retrograde Orbit Asteroids | Rookie | Misc | 16 | September 23rd 05 12:23 AM |
Observing Near Earth Asteroids with a Small Telescope | Tom Kirke | Amateur Astronomy | 1 | April 13th 05 09:36 AM |