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Sun News
September 7, 2021
Top Headlines
 
Spiral galaxy | (c) Alexandr Mitiuc / stock.adobe.com

Cold Planets Exist Throughout Our Galaxy, Even in the Galactic Bulge, Research Suggests

Aug. 30, 2021 — Researchers combined observations and modeling to infer the distribution of cold planets in the Milky Way. The results ...

Geologists Propose Theory About a Famous Asteroid

Sep. 1, 2021 — Vesta, like Earth, is composed of rock in its crust and mantle, and it has an iron core. Therefore, studying Vesta helps us understand the very early days of our planetary neighborhood and how our ...
Spaceship on Mars | (c) dottedyeti / stock.adobe.com

Will It Be Safe for Humans to Fly to Mars?

Aug. 26, 2021 — A human space mission would be viable if it doesn't exceed four years, an international research team concludes in ...

Interstellar Comets Like Borisov May Not Be All That Rare

Aug. 23, 2021 — Astronomers calculate that the Oort Cloud may be home to more visiting objects than objects that belong to our solar ...
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NASA's TESS Tunes Into an All-Sky 'Symphony' of Red Giant Stars

Aug. 5, 2021 — Using observations from NASA's Transiting Exoplanet Survey Satellite (TESS), astronomers have identified an unprecedented collection of pulsating red giant stars all across the sky. These stars, ...

Solving Solar Puzzle Could Help Save Earth from Planet-Wide Blackouts

Aug. 5, 2021 — Understanding the Sun's magnetic dynamo could help predict solar weather, such as potentially dangerous geothermal storms, solar flares and sunspots. Mathematicians have proposed a new model of ...

Nearby Star Resembles Ours in Its Youth

Aug. 4, 2021 — New research provides a closer look at a nearby star thought to resemble our young Sun. The work allows scientists to better understand what our Sun may have been like when it was young, and how it ...

Astronomers Discover How to Feed a Black Hole

July 29, 2021 — Researchers have discovered long narrow dust filaments which surround and feed black holes in the centers of galaxies, and which could be the natural cause of the darkening of the centers of many ...

First Detection of Light from Behind a Black Hole

July 28, 2021 — Fulfilling a prediction of Einstein's theory of General Relativity, researchers report the first-ever recordings of X-ray emissions from the far side of a black ...

Magnetic Fields Implicated in the Mysterious Midlife Crisis of Stars

July 28, 2021 — Middle-aged stars can experience their own kind of midlife crisis, experiencing dramatic breaks in their activity and rotation rates at about the same age as our Sun, according to new research. The ...

Unravelling the Knotty Problem of the Sun's Activity

July 22, 2021 — A new approach to analysing the development of magnetic tangles on the Sun has led to a breakthrough in a longstanding debate about how solar energy is injected into the solar atmosphere before being ...

Planetary Shields Will Buckle Under Stellar Winds from Their Dying Stars

July 22, 2021 — Any life identified on planets orbiting white dwarf stars almost certainly evolved after the star's death, says a new study that reveals the consequences of the intense and furious stellar winds ...

Long-Period Oscillations of Sun Discovered

July 20, 2021 — A team of solar physicists has reported the discovery of global oscillations of the Sun with very long periods, comparable to the 27-day solar rotation period. The oscillations manifest themselves at ...

Tail Without a Comet: The Dusty Remains of Comet ATLAS

July 19, 2021 — A serendipitous flythrough of the tail of a disintegrated comet has offered scientists a unique opportunity to study these remarkable ...

Physicists More Fully Describe Sun's Electric Field

July 14, 2021 — Physicists have described in fuller detail the sun's electric field. The researchers measured the flow of electrons streaming from the sun as the Parker Solar Probe spacecraft made its closest ...

Mystery of Heavy Elements in Galactic Cosmic Rays

July 6, 2021 — Scientists have used data from the Southwest Research Institute-led Magnetospheric Multiscale (MMS) mission to explain the presence of energetic heavy elements in galactic cosmic rays (GCRs). GCRs ...

Sculpted by Starlight: A Meteorite Witness to the Solar System's Birth

July 6, 2021 — Scientists knew a burst of UV light left its mark on our solar system. Now they know the source of that ...

Why Does Mercury Have Such a Big Iron Core?

July 2, 2021 — A new study disputes the prevailing hypothesis on why Mercury has a big core relative to its mantle. For decades, scientists argued that hit-and-run collisions blew away much of Mercury's rocky ...

Astronomers Have Identified a White Dwarf So Massive That It Might Collapse

June 30, 2021 — Astronomers have identified an extremely magnetized and rapidly rotating ultra-massive white dwarf. Several telescopes characterized the dead ...

Exoplanets in 2,034 Star-Systems Get Cosmic Front-Row Seat to See Earth

June 23, 2021 — Scientists have identified 2,034 nearby star-systems -- within the small cosmic distance of 326 light-years -- that could find Earth merely by watching our pale blue dot cross our ...

Earth-Like Biospheres on Other Planets May Be Rare

June 23, 2021 — A new analysis of known exoplanets has revealed that Earth-like conditions on potentially habitable planets may be much rarer than previously thought. The work focuses on the conditions required for ...

Researchers Trace Dust Grain's Journey Through Newborn Solar System

June 21, 2021 — Combining atomic-scale sample analysis and models simulating likely conditions in the nascent solar system, the study revealed clues about the origin of crystals that formed more than 4.5 billion ...

How a Supermassive Black Hole Originates

June 16, 2021 — How do supermassive black holes in the early universe originate? A team led by a theoretical physicist has come up with an explanation: a massive seed black hole that the collapse of a dark matter ...

The Give and Take of Mega-Flares from Stars

June 16, 2021 — The long relationships between stars and the planets around them - including the Sun and the Earth - may be even more complex than previously thought. This is one conclusion of a new study involving ...
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