Quickest we could visit another star is 69 years – here’s how

Of all the stars in the sky, you might assume the closest to the sun would be the easiest to visit. But this may not be the case.

René Heller at the Max Planck Institute for Solar System Research in Göttingen, Germany, says we could reach and orbit Sirius, the brightest star in our night sky, in just 69 years. This is despite the fact that it is twice as far away as our nearest stars in the Alpha Centauri system, which would take at least 90 years to reach.

Read more on New Scientist

Asteroid clay is a better space radiation shield than aluminium

The huge rocks that hurtle through space may prove to be lifesavers for astronauts. Clays extracted from asteroids could be used on deep space missions to shield against celestial radiation.

Radiation from cosmic rays is one of the biggest health risks astronauts will face on long space missions, such as a proposed trip to Mars or settlement on the moon. A 2013 study suggested that a return trip to Mars would expose astronauts to a lifetime’s dose in one go.

Read more on New Scientist

Blog at WordPress.com.

Up ↑