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Earth Sciences Feb 20, 2020

The Earth formed much faster than previously thought

The precursor of our planet, the proto-Earth, formed within a time span of approximately five million years, shows a new study from the Centre for Star and Planet Formation (StarPlan) at the Globe Institute at the University ...

Astronomy Feb 20, 2020

Beyond the brim, Sombrero Galaxy's halo suggests turbulent past

Surprising new data from NASA's Hubble Space Telescope suggests the smooth, settled "brim" of the Sombrero galaxy's disk may be concealing a turbulent past. Hubble's sharpness and sensitivity resolves tens of thousands of ...

Astronomy Feb 19, 2020

Galaxy Cruise—Your galactic journey as a citizen scientist

The Universe is full of galaxies of various shapes; some galaxies have spiral arms and others don't. Why do galaxies show such diversity? Galaxies are thought to grow by interacting and merging with other galaxies; and the ...

Astronomy Feb 17, 2020

Globular cluster system of NGC 4546 studied in detail

Using the Gemini-South telescope, astronomers have performed a photometric study of the lenticular galaxy NGC 4546. Results of the new research provide more clues about the structure and nature of the galaxy's globular cluster ...

Astronomy Feb 17, 2020

Image: Hubble embraces spiral with open arms

The spiral galaxy NGC 2008 sits center stage, its ghostly spiral arms spreading out toward us, in this image captured by the NASA/ESA Hubble Space Telescope.

Astronomy Feb 20, 2020

Stargazing with computers: What machine learning can teach us about the cosmos

Gazing up at the night sky in a rural area, you'll probably see the shining moon surrounded by stars. If you're lucky, you might spot the furthest thing visible with the naked eye—the Andromeda galaxy. It's the nearest ...

General Physics Feb 17, 2020

New all-sky search reveals potential neutrino sources

For over a century, scientists have been observing very high-energy charged particles called cosmic rays arriving from outside Earth's atmosphere. The origins of these particles are very difficult to pinpoint because the ...

Astronomy Feb 17, 2020

Earth climate models and the search for life on other planets

In a generic brick building on the northwestern edge of NASA's Goddard Space Flight Center campus in Greenbelt, Maryland, thousands of computers packed in racks the size of vending machines hum in a deafening chorus of data ...

Astronomy Feb 20, 2020

Sub-Neptune sized planet validated with the habitable-zone planet finder

A signal originally detected by the Kepler spacecraft has been validated as an exoplanet using the Habitable-zone Planet Finder (HPF), an astronomical spectrograph built by a Penn State team and recently installed on the ...

Astronomy Feb 19, 2020

There could be meteors traveling at close to the speed of light when they hit the atmosphere

It's no secret that planet Earth is occasionally greeted by rocks from space that either explode in the atmosphere or impact on the surface. In addition, Earth regularly experiences meteor showers whenever it passes through ...

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