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The Geminids meteor shower lights up the sky over the Mexican volcano Popocatepetl, near the village San Nicolas de los Ranchos in the state of Puebla, December 14, 2004.

The Geminids meteor shower peaks this weekend, with hundreds of multicolored shooting stars. Here’s how to spot them.

Unlike most meteor showers, which come from comet dust, the Geminids are fragments of an asteroid. Earth passes through the cloud each December.
Researchers install a new quantum squeezing device into one of LIGO’s gravitational wave detectors.

An experiment that solved a 100-year-old mystery posed by Einstein just got up to 50% more powerful by squeezing light

LIGO can now detect gravitational waves almost every week, thanks to a new instrument that squeezes photons in a vacuum.
The sun absolutely dwarfs every planet.

A stunning animation by a planetary scientist shows how huge our solar system is — and why that makes it so hard to depict

The planets are so far apart, and the sun is so big, that you wouldn't be able to see anything in an accurate model of the solar system.
Just like the near side of the moon, the far side cycles through day and night phases.

There is no permanent dark side of the moon, and this simple animation by a former NASA scientist explains why

The far side of the moon and the dark side are not the same thing. This animation shows how one is constantly moving, while the other never changes.
Sixty Starlink satellites were launched into space on Monday.

SpaceX’s Starlink satellites are already messing with astronomical research but there are thousands more planned

Astronomers warned that SpaceX's Starlink satellites could majorly jeopardise astronomical research.
An artist's interpretation of a gamma-ray burst.

Scientists detected the brightest light in the universe for the first time, following a mysterious explosion in space

Astronomers had 50 seconds to turn their telescopes toward a violent explosion in a galaxy 4 billion light-years away.
SpaceX, the rocket company founded by Elon Musk, plans to surround Earth with Starlink satellites to provide global high-speed, low-latency internet.

SpaceX’s Starlink internet satellites could make astronomy on Earth ‘impossible’ and create a space-junk nightmare, some scientists ...

SpaceX recently launched 60 Starlink satellites as part of its plan to blanket Earth in high-speed internet. But scientists foresee some problems.
This image of Mercury uses enhanced colors to emphasize chemical, mineralogical, and physical differences on the planet's surface.

Mercury is traveling across the sun for the last time until 2032. Here’s how to watch the rare transit.

The Mercury transit won't appear in space again until 2032. But if you want to watch the event, don't look at the sun without protection.
A shot of the black hole depicted in the movie "Interstellar."

The movie ‘Interstellar’ came out exactly 5 years ago. Since then, new discoveries have changed our understanding of black holes.

Director Christopher Nolan's film "Interstellar" came out in 2014. Scientists' understanding of black holes has changed considerably since then.
A simulated view of dark matter density (blue) and visible matter (orange) in the universe's cosmic web.

The universe is expanding faster than scientists thought, a study confirms — a ‘crisis in cosmology’ that could require a ‘new...

NASA's Hubble Space Telescope and new mirror technology confirmed a mystery that could lead to a "new physics," one astrophysicist said.