Search results for cosmic

Planetary Sciences Jun 20, 2024

Iron meteorites hint that our infant solar system was more doughnut than dartboard

Four and a half billion years ago, our solar system was a cloud of gas and dust swirling around the sun, until gas began to condense and accrete along with dust to form asteroids and planets. What did this cosmic nursery, ...

Astronomy Jun 20, 2024

The earliest merging quasars ever seen

Studying the history of science shows how often serendipity plays a role in some of the most important discoveries. Sometimes, the stories are apocryphal, like Newton getting hit on the head with an apple. But sometimes, ...

Astronomy Jun 20, 2024

French-Chinese probe to hunt universe's biggest explosions

A French-Chinese telescope satellite will blast off this weekend on a mission to hunt down gamma-ray bursts, the most powerful explosions in the universe.

Astronomy Jun 19, 2024

Earth's atmosphere is our best defense against nearby supernovae, study suggests

Earth's protective atmosphere has sheltered life for billions of years, creating a haven where evolution produced complex lifeforms like us. The ozone layer plays a critical role in shielding the biosphere from deadly UV ...

Astronomy Jun 19, 2024

Supercooled phase transitions: Could they explain gravitational wave signals?

A new study published in Physical Review Letters explores the possibility that a strongly supercooled, first-order phase transition in the early universe could explain gravitational wave signals observed by pulsar timing ...

Astronomy Jun 17, 2024

Einstein's other theory of gravity could have the recipe to relieve 'Hubble trouble'

A recent study has investigated teleparallel gravity and its potential to resolve tension surrounding the expansion of the universe in a way that general relativity can't.

Astronomy Jun 17, 2024

Image: Hubble captures a cosmic fossil (NGC 2005)

This NASA/ESA Hubble Space Telescope image features the globular cluster NGC 2005. It's not an unusual globular cluster in and of itself, but it is a peculiarity when compared to its surroundings.

Planetary Sciences Jun 14, 2024

NASA is considering other ways of getting its Mars samples home

In 2021, NASA's Perseverance rover landed in the Jezero Crater on Mars. For the next three years, this astrobiology mission collected soil and rock samples from the crater floor for eventual return to Earth. The analysis ...

Space Exploration Jun 13, 2024

Space weather forecasting needs an upgrade to protect future Artemis astronauts

NASA has set its sights on the moon, aiming to send astronauts back to the lunar surface by 2026 and establish a long-term presence there by the 2030s. But the moon isn't exactly a habitable place for people.

Plasma Physics Jun 13, 2024

Pair plasmas found in deep space can now be generated in the lab

An international team of scientists has developed a novel way to experimentally produce plasma 'fireballs' on Earth.

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