The world's largest telescope has gotten its official construction go-ahead, keeping the enormous instrument on track to start observing the heavens in 2024.
The photos capture Mars passing below two objects known as the Lagoon and Trifid nebulas, both in the constellation Sagittarius.
Welcome to the Oyster Nebula, a lumpy cloud of plasma with a pulsating pearl in its core. Continue reading →
Autumn is the best season of the year for astronomical observing, here are some deep-space cosmic stunners waiting to be found.
It's often said where there's smoke, there's fire -- but the only fire here is the reddish glow from vast clouds of ionized hydrogen, set alight by the powerful UV radiation pouring out of nearby hot young stars. Continue reading →
Construction of what is billed to be the most advanced and optically powerful telescope on the planet got off to a rough start this week by protesters objecting to the observatory’s location at the summit of Mauna Kea, on Hawaii’s Big Island. Continue reading →
A spectacular new photo shows a cluster of stars whose brightest objects form a triangle that has been likened to a flock of ducks in flight.
On these late-summer evenings after the sun has set, look low in the southern sky for the classical Archer: the constellation Sagittarius.
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