NEO tagged posts

Electronic devices lose energy as heat due to the movement of electrons. Now, a breakthrough in nanoengineering has produced a new kind of switch that matches the performance of the best traditional designs while pushing beyond the power-consumption limits of modern electronics.

Researchers from the University of Michigan have achieved what scientists have been trying to execute for a long time: designing electronics that harness excitons—pairs of an electron and a corresponding hole (a missing electron) bound together forming a charge-neutral particle—instead of electrons.

The newly designed nanoengineer...

This computer-generated image depicts the flyby of asteroid 2014 JO25. The asteroid will safely fly past Earth on April 19 at a distance of about 1.1 million miles (1.8 million kilometers), or about 4.6 times the distance between Earth and the moon. Credit: NASA/JPL-Caltech

A relatively large near-Earth asteroid discovered nearly 3 years ago will fly safely past Earth on April 19 at ~1.1 million miles or ~4.6 times the distance from Earth to the moon. Although there is no possibility for the asteroid to collide with our planet, this will be a very close approach for an asteroid of this size...

Final sequence of images of Asteroid Lutetia, acquired on 10 July 2010 by ESA’s Rosetta spacecraft just before making closest approach of 3162 km. Lutetia is an elongated body, with its longest side around 130 km. ~ESA 2010 MPS for OSIRIS Team MPS/UPD/LAM/IAA/RSSD/INTA/UPM/DASP/IDA

The international effort to find, confirm and catalogue the multitude of asteroids that pose a threat to our planet has reached a milestone: 15 000 discovered – with many more to go.The number of catalogued asteroids approaching Earth has grown rapidly since the count reached 10 000 only 3 years ago. Near-Earth objects, or NEOs, are asteroids or comets with sizes ranging from metres to tens of kilometres whose orbits come close to ours, ie they could hit our planet.

The discovered NEOs are part of a much lar...