Gold started the short week on the downside—with the front-month contract closing down 1.9% to $3,299.10 a troy ounce.

The ETF seeks to blend the best of passive and active strategies, adjusting stock and bond exposure based on expected returns ...

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One galaxy uses a quasar like a cosmic weapon, blasting its opponent and halting star formation—an epic deep-space duel seen for the first time.

In a rare cosmic spectacle, astronomers have observed two galaxies engaged in a high-speed collision, approximately 11 ...

In 1987, an enormous blue arc, thought to be hundreds of trillions of miles long, was first considered one of the largest objects ever detected in space. The arc was discovered near the galaxy cluster ...

Discover interesting facts about what black holes are, how they form and what would happen if you fell into one.

A quasar in one galaxy blasted another during a cosmic collision, compressing star-forming gas into tiny clumps too small to ...

What if black holes weren’t the only things slowly vanishing from existence? Scientists have now shown that all dense cosmic ...

A new proposal makes the case that paraparticles—a new category of quantum particle—could be created in exotic materials.

Using combined observations from ground-based telescopes over nearly four years, the researchers saw the distant galactic ...