The sunspot cycle revisited

Nick Lomb

The yearly Wolf sunspot numbers from 1700 to 2011 (red) together with the modified sunspot numbers (blue). Data from the Solar Influences Data Analysis Center, diagram Nick Lomb Dark spots or sunspots on the surface of the Sun provide an indication of its activity. To make comparisons over long periods researchers usually use the Wolf [...]

The innermost planet in our solar system, Mercury has been something of a mystery. Its proximity to the Sun made getting a close [...]

Billion-pixel view of Mars comes from Curiosity rover

(Phys.org) —A billion-pixel view from the surface of Mars, from NASA's Mars rover Curiosity, offers armchair explorers a way to examine one part of the Red Planet in great detail.

Say 'cheese,' Earthlings! Spacecraft to snap home planet pic from deep space

NASA's Cassini spacecraft, now flying near Saturn, is turning its cameras back toward Earth today so it can grab a photo of its home planet from almost 900 million miles away

Wave to Saturn! NASA Probe to Photograph Earth from Deep Space

Scientists are asking Earthlings to pose for our planet's portrait July 19.

NASA Cassini probe to photograph Earth from 898 million miles away

Stuart Clark The Guardian

Nasa’s Cassini spacecraft will take an image of Earth from 1.44bn kilometres away. From there, our planet will look like the expected images of alien earths around other stars Nasa takes pictures of Earth all the time – but not like this. The Cassini spacecraft is in orbit around Saturn, and...