Another search for Planet 9 comes up empty

A theorized huge, ninth planet beyond the orbit of Neptune once again wasn’t found in a new survey of the solar system‘s outer reaches. Astronomers scanned a large portion of the sky using the 6-meter Atacama Cosmology Telescope (ACT) in Chile to search for Planet 9. The quest came up empty, according to the scientists … Read more

How Did The Big Bang Arise Out of Nothing?

“The last star will slowly cool and fade away. With its passing, the Universe will become once more a void, without light or life or meaning.” So warned the physicist Brian Cox in the recent BBC series Universe. The fading of that last star will only be the beginning of an infinitely long, dark epoch. … Read more