A new study says the mystery object is likely a remnant of a Pluto-like world and shaped like a cookie. Arizona State ... chunk off an icy nitrogen-covered planet 500 million years ago and sent ...

A new study says the mystery object is likely a remnant of a Pluto-like world and shaped like a cookie. Arizona State ... chunk off an icy nitrogen-covered planet 500 million years ago and sent ...

as these dips are signs that a planet may be passing in front of a star. It's something like the way the moon causes dimming when it occasionally eclipses the sun. Speculoos cookies are spiced ...