There are many things in life whose constancy we can rely on -- friends, family, death, taxes -- but our home planet isn't one of them. Things are 'a' changin'. Slooowly. How would you feel about longer days, shorter springs, and a new north star?
The ringed planet might have a longer day than originally calculated.
Jupiter's early migration through the inner solar system caused gravitational mayhem, but it ultimately settled to allow Earth to form in a relatively quiet neighborhood.
A study based on 151 multi-planetary systems found by NASA's Kepler space telescope shows that most have a planet -- or two or three.
As Ceres and Pluto slowly come into view, take a look back at what we thought these worlds would look like up close.
Most of us kind of get that the Earth is spinning and lots of other stuff out there is doing the same. Fair enough, but ... WHY?
Astronomers have found an ancient, more compact version of our solar system, which could have implications for the search of extraterrestrial life.
Ceres is an embryonic planet that had the misfortune of seeing Jupiter crush its dreams of becoming a legit planet on its own. But the more scientists learn about the plucky dwarf, the more they like it.
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