A distant, Neptune-size planet 500 light-years from Earth appears to be the youngest fully formed exoplanet ever found crossing its star, raising questions about how it formed so close, so quickly.
Researchers first found the planet, which whisks around its star every five days, using the Kepler space telescope currently orbiting Earth. Its star is only 5 million to 10 million years old, suggesting that the planet is a similar age — incredibly young, on a cosmic scale. Researchers said it was the youngest planet spotted fully formed around a distant star, and it is nearly 10 times closer to its star than Mercury is to the sun. Continue reading Rare Newborn Planet May Be the Youngest Ever Detected
I’m always being asked by those who have just purchased a telescope when and where they can see the planet Saturn.
Saturn, of course, is one of the most impressive objects visible in a telescope, chiefly due to its magnificent ring system. It is usually stated that Saturn is the most beautiful sight in the sky and if you have ever seen a photograph of it you will find that such a judgement is difficult to argue with. There is absolutely nothing else like it to be seen anywhere. Continue reading Moon Shares Encounter with Saturn Tonight
At a distant star called Kepler-223, four gas giant planets orbit close in to their sun. It couldn’t be more different from our own solar system today, where all the big planets hang out far away. But could Kepler-223 be how our solar system was long ago? Continue reading Extreme Exoplanets Reveal Migration Mystery
There’s only one planet in our solar system that can communicate across interplanetary space. But imagine if things were different. Say if Mars, for example, had intelligent beings able to talk to us at the same time as we talked to them — how would that have changed our history? Continue reading Neighboring Earth-like Planets Could Share Alien Life