Search results for cosmic

Planetary Sciences Apr 4, 2024

Tracing the largest solar storm in modern times from tree rings in Lapland

A research group coordinated by the University of Helsinki was able to measure a spike in radiocarbon concentration of trees in Lapland that occurred after the Carrington flare. This discovery helps to prepare for dangerous ...

Space Exploration Apr 4, 2024

One Tech Tip: How to use apps to track and photograph the total solar eclipse

Monday's total solar eclipse might become one of the most filmed and photographed events of the year.

Astronomy Apr 3, 2024

Australian 'bush glass' bears the fingerprints of a cosmic collision with an iron meteorite

How Earth and the other planets of the solar system formed and evolved over the eons is a hot question for planetary scientists like me. One of the best ways to find out is by looking at rocks from space.

Astronomy Apr 3, 2024

Luminous quasar PDS 456 explored with MUSE

Using the Multi Unit Spectroscopic Explorer (MUSE) at the Very Large Telescope (VLT) in Chile, an international team of astronomers has inspected a luminous quasar known as PDS 456. Results of the observational campaign, ...

Earth Sciences Apr 2, 2024

Scientists' urgent call: End destruction and forge a just, sustainable future

An international team of scientists has published a study in PNAS Nexus, emphasizing the urgent need to align political will, economic resources, and societal values to ensure a more sustainable and equitable world. Led by ...

Astronomy Apr 2, 2024

Surprising facts and beliefs about eclipses from the medieval and Renaissance eras

In medieval and Renaissance society and culture, celestial events were not mere spectacles in the sky. Rather, they were omens, predictors of the future, and windows into the workings of the universe.

Space Exploration Apr 2, 2024

Totality ready: US braces for April 8 solar eclipse frenzy

US communities along the path of the April 8 total solar eclipse are preparing for the year's biggest astronomic event, with millions of visitors expected to brighten local economies—and snarl up logistics.

Astronomy Apr 1, 2024

Exploding stars are rare but emit torrents of radiation—one close enough to Earth could threaten life on the planet

Stars like the sun are remarkably constant. They vary in brightness by only 0.1% over years and decades, thanks to the fusion of hydrogen into helium that powers them. This process will keep the sun shining steadily for about ...

Astronomy Mar 30, 2024

A cosmic 'speed camera' just revealed the staggering speed of neutron star jets in a world first

How fast can a neutron star drive powerful jets into space? The answer, it turns out, is about one-third the speed of light, as our team has just revealed in a new study published in Nature.

Astronomy Mar 29, 2024

Mapping the best route for a spacecraft traveling beyond the sun's sphere of influence

The heliosphere—made of solar wind, solar transients, and the interplanetary magnetic field—acts as our solar system's personal shield, protecting the planets from galactic cosmic rays. These extremely energetic particles ...

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