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Tag: James Webb Space Telescope

World

Hints of Life on Exoplanet K2-18b Recede Even Further

July 24, 2025July 24, 2025CARL ZIMMERComments Off on Hints of Life on Exoplanet K2-18b Recede Even Further

New observations fail to confirm signs of life in the atmosphere of the distant planet K2-18b. They also raise questions about what it will take to detect biology light-years away.

World

Hints of Life on Exoplanet K2-18b Recede Even Further

July 24, 2025CARL ZIMMERComments Off on Hints of Life on Exoplanet K2-18b Recede Even Further

New observations fail to confirm signs of life in the atmosphere of the distant planet K2-18b. They also raise questions about what it will take to detect biology light-years away.

World

Scientific Dreams in the Balance

June 2, 2025DENNIS OVERBYEComments Off on Scientific Dreams in the Balance

Research breakthroughs are often sagas of passion, curiosity and sacrifice. If Trump’s proposed budget cuts for 2026 are enacted, many such journeys may never get started.

World

Scientific Dreams in the Balance

June 2, 2025DENNIS OVERBYEComments Off on Scientific Dreams in the Balance

Research breakthroughs are often sagas of passion, curiosity and sacrifice. If Trump’s proposed budget cuts for 2026 are enacted, many such journeys may never get started.

World

New Studies Dismiss Signs of Life on Distant Planet

May 23, 2025May 23, 2025CARL ZIMMERComments Off on New Studies Dismiss Signs of Life on Distant Planet

In April, astronomers said they had detected a possible signature of life on the exoplanet K2-18b. Now, three independent analyses discount the evidence.

World

Astronomers Detect a Signature of Life on a Distant Planet

April 16, 2025April 18, 2025CARL ZIMMERComments Off on Astronomers Detect a Signature of Life on a Distant Planet

Further studies are needed to determine whether K2-18b, which orbits a star 120 light-years away, is inhabited, or even habitable.

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.

World

Piping Up at the Gates of Dawn

June 22, 2024DENNIS OVERBYEComments Off on Piping Up at the Gates of Dawn

Astronomers have found the earliest and most distant galaxy yet.

World

Galaxies in the Early Universe Were Shaped Like Bananas, Study Suggests

January 5, 2024January 8, 2024DENNIS OVERBYEComments Off on Galaxies in the Early Universe Were Shaped Like Bananas, Study Suggests

Images from the Webb telescope suggest that newborn galaxies look weirder than expected. Exactly how screwy was physics at the dawn of time?

World

How to Create a Black Hole Out of Thin Air

December 24, 2023December 25, 2023DENNIS OVERBYEComments Off on How to Create a Black Hole Out of Thin Air

Black holes were thought to arise from the collapse of dead stars. But a Webb telescope image showing the early universe hints at an alternative pathway.

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