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Tag: Stars and Galaxies

World

Happy 10th Birthday to the Laser Interferometer Gravitational-Wave Observatory. Now Drop Dead.

September 10, 2025September 10, 2025DENNIS OVERBYEComments Off on Happy 10th Birthday to the Laser Interferometer Gravitational-Wave Observatory. Now Drop Dead.

Ten years ago, astronomers made an epic discovery with the Laser Interferometer Gravitational-Wave Observatory. Cosmology hasn’t been the same since, and it might not stay that way much longer.

World

Traveling the Cosmos With Carter Emmart, One Last Time

June 13, 2025DENNIS OVERBYEComments Off on Traveling the Cosmos With Carter Emmart, One Last Time

For nearly three decades he has created mesmerizing planetarium shows at the American Museum of Natural History. But other galaxies await.

World

Astronomers Get ‘More Than a Hint’ That Dark Energy Isn’t What They Thought

March 19, 2025March 19, 2025Katrina Miller and Dennis OverbyeComments Off on Astronomers Get ‘More Than a Hint’ That Dark Energy Isn’t What They Thought

New data further challenge the best scientific theory of the history and the structure of the universe. But a separate recent result reinforces it.

World

‘Ultrahigh Energy’ Neutrino Found With a Telescope Under the Sea

February 12, 2025February 12, 2025Katrina MillerComments Off on ‘Ultrahigh Energy’ Neutrino Found With a Telescope Under the Sea

It’s the most energetic particle of its kind ever discovered, and scientists have no idea where it came from.

World

A Solstice of the Soul

December 20, 2024DENNIS OVERBYEComments Off on A Solstice of the Soul

For his next trick, your cosmic correspondent for the past quarter-century will (try to) retire.

World

Barnard’s Star Finally Has a Planet, and Possibly More

November 17, 2024DENNIS OVERBYEComments Off on Barnard’s Star Finally Has a Planet, and Possibly More

For a century, exoplanet hunters have “discovered” planets around a nearby star, only to retract the claims. But the latest find is for real.

World

Can Axions Save the Universe?

November 1, 2024Dennis Overbye and Katrina MillerComments Off on Can Axions Save the Universe?

The hunt for dark matter is shifting from particles to waves named after a laundry detergent.

World

Two Black Holes are Giving the Cosmos a Fright

October 30, 2024October 30, 2024DENNIS OVERBYEComments Off on Two Black Holes are Giving the Cosmos a Fright

The ghosts of stars are up to their usual mischief.

World

Astronomers Spot a Black Hole with a Cosmic Wingspan

September 25, 2024September 25, 2024DENNIS OVERBYEComments Off on Astronomers Spot a Black Hole with a Cosmic Wingspan

Astronomers have discovered a black hole emitting energy in jets longer than the width of 140 Milky Way galaxies.

World

Chandra Observatory Captures Two Supernovas in (Slow) Motion

July 12, 2024DENNIS OVERBYEComments Off on Chandra Observatory Captures Two Supernovas in (Slow) Motion

For the 25th anniversary of the Chandra X-ray Observatory, NASA produced ghostly time-lapse videos of two centuries-old stellar explosions.

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Headlines

A Break-In That Shook France

October 26, 2025Roger Cohen

With Trump’s Asia Trip, Speculation Mounts of a Meeting With Kim Jong-un

October 25, 2025October 25, 2025CHOE SANG-HUN

What Is the ASEAN Summit, the First Event on Trump’s Tour of Asia?

October 25, 2025SUI-LEE WEE

Here’s the latest.

October 25, 2025October 26, 2025SUI-LEE WEE

The ‘Sleeper Issue’ at the Heart of Trump’s Trade War on China

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In Trump, Families of Cambodian Troops Detained by Thailand See Hope

October 25, 2025October 25, 2025Sui-Lee Wee, Sun Narin and Lauren DeCicca

A Furniture Town Reels From Trump’s Tariffs (and Braces for More)

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Trump Announces Tariff Increase on Canada Over Reagan Ad Spat

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Francisco Pinto Balsemão, 88, Dies; Portuguese Prime Minister and Press Champion

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Judge Dismisses Most Claims Against Tate Brothers in Florida Lawsuit

October 25, 2025Isabella Kwai and Adeel Hassan
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