Search results for Planet Nine

Earth Sciences Jan 6, 2025

Scientists reveal CO₂'s fundamental role in ancient climate shifts

Researchers from the University of St Andrews have shed new light on the fundamental role played by carbon dioxide (CO2) in Earth's geological warming and cooling.

Astronomy Jan 3, 2025

Carbon in our bodies likely left galaxy and came back on cosmic 'conveyer belt'

Life on Earth could not exist without carbon. But carbon itself could not exist without stars. Nearly all elements except hydrogen and helium—including carbon, oxygen and iron—only exist because they were forged in stellar ...

Other Dec 4, 2024

Best of last year: The top Phys.org articles of 2024

It was a good year for space science as Sumner Starrfield, an astronomer at Arizona State University, described what was to appear as a huge star exploding in the night sky, in a once-in-a-lifetime event this past fall. A ...

Earth Sciences Dec 3, 2024

Countdown to an ice-free Arctic: Research warns of accelerated timelines

The first summer on record that melts practically all of the Arctic's sea ice, an ominous milestone for the planet, could occur as early as 2027.

Archaeology Nov 27, 2024

Fallen ancient civilizations show us why we must not ignore climate warnings

In 1177BC, Amurapi, the last king of Ugarit in modern-day Syria, wrote in cuneiform on baked clay to the Hittite emperor Suppiluliuma II: "My father behold, the enemy's ships have come; my cities were burned, and they did ...

Plants & Animals Nov 19, 2024

Researchers find trees acclimate to changing temperatures

Climate change is a persistent and growing challenge to plant life on our planet. Changes to the environment that plants are unaccustomed to affect how they grow, putting them much at risk. Increasingly, plant scientists ...

Astronomy Nov 18, 2024

The best way to find planet nine might be hundreds of tiny telescopes

Ever since William Herschel discovered Uranus in 1781, astronomers have been eager to find new planets on the outer edge of the solar system. But after the discovery of Neptune in 1846, we've found no other large planets. ...

Plants & Animals Nov 18, 2024

Paper wasps study shows that body size is larger in habitats nearer the equator

A study of the correlation between environmental variables such as latitude and body size in paper wasps (genus Polistes) by a group of Brazilian researchers concludes that the nearer the habitat of a species to the equator, ...

Environment Nov 13, 2024

Can we live on our planet without destroying it? Researcher investigates planetary boundaries

With eight billion people, we use a lot of the Earth's resources in ways that are likely unsustainable. Klaus Hubacek, Professor of Science, Technology and Society at the University of Groningen, the Netherlands, takes stock ...

Planetary Sciences Nov 12, 2024

A mission to Triton and Neptune could unlock their mysteries

A town in the Austrian Alps might not seem like the most conducive place to come up with daring space missions. But, for the last 40 years, students and professors have been gathering to do just that in Alpbach, just north ...

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