Category Astronomy/Space

Tiny Droplets of Early Universe Matter Created


Visualization of expanding drops of quark gluon plasmas in three geometric shapes.
Credit: Javier Orjuela Koop

Researchers have created tiny droplets of the ultra-hot matter that once filled the early universe, forming three distinct shapes and siztiny droplets of the ultra-hot matter that once filled the early universees: circles, ellipses and triangles.

The study, published today in Nature Physics, stems from the work of an international team of scientists and focuses on a liquid-like state of matter called a quark gluon plasma. Physicists believe that this matter filled the entire universe during the first few microseconds after the Big Bang when the universe was still too hot for particles to come together to make atoms.

CU Boulder Professor Jamie Nagle and colleagues on an ex...

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NASA’s Voyager 2 Probe enters Interstellar Space


 Position of NASA’s Voyager 1 and Voyager 2 probes, outside of the heliosphere, a protective bubble created by the Sun that extends well past the orbit of Pluto. Voyager 1 exited the heliosphere in August 2012. Voyager 2 exited at a different location in November 2018.
Credit: NASA/JPL-Caltech

For the second time in history, a human-made object has reached the space between the stars. NASA’s Voyager 2 probe now has exited the heliosphere – the protective bubble of particles and magnetic fields created by the Sun.

Comparing data from different instruments aboard the trailblazing spacecraft, mission scientists determined the probe crossed the outer edge of the heliosphere on Nov. 5...

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NASA InSight lander ‘Hears’ Martian Winds


One of InSight’s 7-foot (2.2 meter) wide solar panels was imaged by the lander’s Instrument Deployment Camera, which is fixed to the elbow of its robotic arm.
Credit: NASA/JPL-Caltech

NASA’s Interior Exploration using Seismic Investigations, Geodesy and Heat Transport InSight lander, which touched down on Mars just 10 days ago, has provided the first ever “sounds” of Martian winds on the Red Planet.

InSight sensors captured a haunting low rumble caused by vibrations from the wind, estimated to be blowing between 10 to 15 mph (5 to 7 meters a second) on Dec. 1, from northwest to southeast. The winds were consistent with the direction of dust devil streaks in the landing area, which were observed from orbit.

“Capturing this audio was an unplanned treat,” said Bruce Banerdt, InSight pri...

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Bringing Balance to the Universe: New Theory could explain Missing 95% of the Cosmos

Milky Way (stock image). Credit: © mandritoiu / Fotolia
Milky Way (stock image). Credit: © mandritoiu / Fotolia

Scientists at the University of Oxford may have solved one of the biggest questions in modern physics, with a new paper unifying dark matter and dark energy into a single phenomenon: a fluid which possesses ‘negative mass’. If you were to push a negative mass, it would accelerate towards you. This astonishing new theory may also prove right a prediction that Einstein made 100 years ago.

Our current, widely recognised model of the Universe, called LambdaCDM, tells us nothing about what dark matter and dark energy are like physically. We only know about them because of the gravitational effects they have on other, observable matter.

This new model, published today in Astronomy and Astrophysics, by Dr Jamie Farnes from the Oxf...

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