Bright fireball may have dropped meteorites in Niagara region

A cosmic drama unfolded over southern Ontario on the night of Friday, Nov. 18, triggering an international collaboration and a meteorite hunt. Just before midnight Eastern time, the Catalina Sky Survey in Arizona detected ...

30,000 near-Earth asteroids discovered, and numbers are rising

We have now discovered 30,039 near-Earth asteroids in the solar system—rocky bodies orbiting the sun on a path that brings them close to Earth's orbit. The majority of these were discovered in the last decade, showing how ...

New polar ring galaxy discovered

Japanese astronomers report the detection of a new polar ring galaxy using the data obtained with the Subaru Telescope as part of the Hyper Suprime-Cam Subaru Strategic Program (HSC-SSP). The discovery was detailed in a paper ...

Planet 9 is running out of places to hide

We have a pretty good idea of what lurks within our solar system. We know there isn't a Mars-sized planet orbiting between Jupiter and Saturn, nor a brown dwarf nemesis heading our way. Anything large and fairly close to ...

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