Dark skies ordinance to dim Pittsburgh's light pollution

For decades, the stars in our night sky have been blotted out by artificial light—from streetlamps, residential houses, businesses, construction sites, vehicles, billboards and so on. The glow they emit misdirects light ...

Hubble captures dense globular cluster NGC 1841

This densely populated group of stars is the globular cluster NGC 1841, which is part of the Large Magellanic Cloud (LMC), a satellite galaxy of our Milky Way galaxy that lies about 162,000 light-years away. Satellite galaxies ...

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