Tag Archives: Astrophysics

A new Simulation of the Universe Contains 60 Trillion Particles, the Most Ever

Today, the greatest mysteries facing astronomers and cosmologists are the roles gravitational attraction and cosmic expansion play in the evolution of the Universe. To resolve these mysteries, astronomers and cosmologists are taking a two-pronged approach. These consist of directly observing the cosmos to observe these forces at work while attempting to find theoretical resolutions for observed behaviors – such as ...

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Not Saying it was Aliens, but ‘Oumuamua Probably Wasn’t a Nitrogen Iceberg…

On October 19th, 2017, astronomers made the first-ever detection of an interstellar object (ISO) passing through our Solar System. Designated 1I/2017 U1′ Oumuamua, this object confounded astronomers who could not determine if it was an interstellar comet or an asteroid. After four years and many theories (including the controversial “ET solar sail” hypothesis), the astronomical community appeared to land on ...

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Juno Peers Beneath Jupiter’s Clouds to Reveal its Complex Atmosphere

Many papers are usually released at once for big space exploration missions. Usually, that happens when an entire batch of data has been analyzed.  The most recent set of papers is from Juno’s explorations of Jupiter’s atmosphere.  With this data dump, scientists now have the first 3D map of the atmosphere of the solar system’s largest planet. Four main discoveries ...

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What’s Snuffing Out Galaxies Before Their Time?

In the Milky Way, the formation rate of stars is about one solar mass every year. About 10 billion years ago, it was ten solar masses every year. What happened? Stars are born in giant molecular clouds (GMCs), and astronomers think that the environment in galaxies affects these clouds and their ability to spawn new stars. Sometimes the environment is ...

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Could our Universe be Someone’s Chemistry Project?

It is a pivotal time for astrophysicists, cosmologists, and philosophers alike. In the coming years, next-generation space and ground-based telescopes will come online that will use cutting-edge technology and machine learning to probe the deepest depths of the cosmos. What they find there, with any luck, will allow scientists to address some of the most enduring questions about the origins ...

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Quick Action Let Hubble Watch the Earliest Stages of an Unfolding Supernova Detonation

If it weren’t for supernova remnants we wouldn’t have much knowledge of supernovae themselves. If a supernova explosion is the end of a star’s life, then we can also thank forensic astrophysics for much of our knowledge. The massive exploding stars leave behind brilliant and mesmerizing evidence of their catastrophic ends, and much of what we know about supernovae comes ...

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A new Climate Model Suggests That Venus Never had Oceans

Thanks to evidence provided by missions like NASA’s Magellan spacecraft, scientists have theorized that Venus likely experienced a catastrophic resurfacing event about 500 million years ago (give or take 200 Mya). This is believed to be the reason why Venus is such a hellish place today, with an atmosphere that is 92 times as dense as Earth’s, predominantly composed of ...

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