Cosmic chronicles the invention of radial velocity spectrometer around 1868 & how it lead to the search for extrasolar planets.
In 2006, Pluto was officially stripped of its planetary status. Now that debate is being reignited with some astronomers calling for the reinstatement of Pluto as a planet, arguing that the icy world should never have been demoted in the first place. So what is the deal? Is Pluto a planet?
May is looking to be a great month for catching up on constellations, enjoying the warm air, and checking out the Moon getting close to the planets.
April is fairly non-eventful, except for the annual Lyrid meteor shower and some good close encounters between the Moon and Mars, Jupiter, and Saturn, and at least one rocket launch.
A great morning lineup in the beginning of the month, all the naked-eye planets visible at some point in the month, and a great lineup ending the month is making March another great morning planetary astronomy month.
How do we know what planets lights years away have in their atmosphere? What about the rocks all around Curiosity?
What do brown dwarfs teach us about stars? What do they teach us about planets? What keeps them warm, and how long do they live?
Get your last look at Jupiter while Saturn is staying up shorter amounts of time, the annual Orionid Meteor Shower and this year moonless Halloween skies.