Pan-starrs1
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First observed interstellar object is a speedy, cigar-shaped asteroid
Last month, astronomers running the Pan-STARRS 1 telescope in Hawaii spotted an intriguing object moving through our solar system and it became clear pretty quickly that the object, whether it was a comet or an asteroid, had come from outside of our solar system. Now, in a paper published this week in the journal Nature, researchers have described the interstellar visitor, dubbed 'Oumuamua, including its peculiarities as well as its similarities to objects originating in our own solar system.
There's something weird going on beyond Neptune
Past Neptune, in the outer solar system, astronomers have recently discovered a new mystery object orbiting the sun on a plane nearly perpendicular to the rest of the planets. Adding to the weirdness, the trans-Neptunian object, which has been nicknamed "Niku," is also spinning around the sun backwards, in the opposite direction of the rest of the planets. So far, astronomers have little idea what could cause such abnormal celestial behavior.
The hunt for killer asteroids is on with the Pan-STARRS 1 telescope
The Pan-STARRS 1 telescope was unveiled on the Hawaiian island of Maui in 2007, and in early 2009, the telescope went fully online and began producing some amazing images. Now, the telescope has a nightly from dusk 'til dawn routine -- and it's looking for asteroids and comets which could threaten Earth. The PS-1, as it's known, boasts a 1,400 megapixel (that's 1.4 gigapixels!) sensor and can photograph an area about 36 times the size of the Moon in one exposure and is expected to map about one sixth of the sky per month. There's a sample shot of what the telescope's photographed below, but hit up the coverage link for many more.
