Tags » Solar System

The Sunspot Cycle and its Possible Effects on Future Manned Spaceflight

We have known for more than a century that solar activity shows a pronounced cyclic variation with an 11-year period. About every 11 years there is a maximum in activity and sunspots become very prominent and very common. 1,572 more words

Space Flight

Sleeping in Space

It’s bedtime on the ISS. CSA Astronaut Chris Hadfield shows us how astronauts sleep in space.

Credit: Canadian Space Agency/NASA

Solar System

Sailing the Solar Sea

The Planetary Society was founded by Carl Sagan, Bruce Murray, and Louis Friedman in 1980 as a voice in support of planetary exploration. I was in high school at the time and joined soon after it was founded. 780 more words


NASA Image of the Day - Hubble’s Exquisite View of a Stellar Nursery

An underlying population of infant stars embedded in the nebula NGC 346 are still forming from gravitationally collapsing gas clouds. via @NASA http://ift.tt/2pxRyfc


Clipping Your Nails in Space

Chris Hadfield shows us how to the crew of the International Space Station clip their nails in space. It’s amazing how much thought goes into the tiniest of activities when you don’t have gravity to help.

Credit: CSA/NASA

Solar System

Relative Distance

The other day we used relative size to try and understand how big the planets in our solar system really are. Now it’s time to learn about relative distance. 105 more words

Solar System

Second sun: Researchers find new evidence that another star grazed solar system 70,000 years ago

Evidence is building that a red dwarf star once grazed the edges of our solar system, and may have been visible in the night sky to humans and some of our now-extinct cousins. 402 more words