Lighting a path to Planet Nine

The search for Planet Nine—a hypothesized ninth planet in our solar system—may come down to pinpointing the faintest orbital trails in an incredibly dark corner of space.

The legacy of of the Spitzer Space Telescope

To understand the significance of the Spitzer Space Telescope on the understanding of our solar system, think of what the steam engine meant for the industrial revolution.

The sun may have started its life with a binary companion

A new theory published today in the Astrophysical Journal Letters by scientists from Harvard University suggests that the sun may once have had a binary companion of similar mass. If confirmed, the presence of an early stellar ...

The birth of a 'snowman' at the edge of the solar system

A model developed at the Faculty of Physics at the Technion, in collaboration with German scientists at Tübingen, explains the unique properties of Arrokoth, the most distant object ever imaged in the solar system. The research ...

Image: Hubble views galaxy from famous catalog

This bright, somewhat blob-like object—seen in this image taken by the NASA/ESA Hubble Space Telescope—is a galaxy named NGC 1803. It is about 200 million light-years away, in the southern constellation of Pictor (the ...

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