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Shedding light on the science of auroral breakups

All-sky images of the auroral breakup that occurred around 2220 UT on June 30, 2017. Photographed at Syowa Station, Antarctica. Left: five minutes before the breakup. Right: right after the breakup. Credit: Hiroshi Miyaoka(NIPR) Auroras, also known as Northern or Southern lights depending on whether they occur near the North or South Pole, are natural…

A nearby river of stars

Night sky centered on the south Galactic pole in a so-called stereographic projection. In this special projection, the Milky Way curves around the entire image in an arc. The stars in the stream are displayed in red and cover almost the entire southern Galactic hemisphere, thereby crossing many well-known constellations. Credit: Astronomy & Astrophysics; Background…

Chang’e 4 Rover comes into view

The Chang'e 4 rover is now visible to LROC! Just beyond the tip of the right arrow is the rover and the lander is to the right of the tip of the left arrow. The image appears blocky because it is enlarged 4x to make it easier to see the two vehicles. North is to…

Philosophy: What exactly is a black hole?

Simulation of Material Orbiting close to a Black Hole. Credit: ESO/Gravity Consortium/L. Calçada A black hole is conventionally thought of as an astronomical object that irrevocably consumes all matter and radiation which comes within its sphere of influence. Physically, a black hole is defined by the presence of a singularity, i.e., a region of space,…

Earth’s magnetic shield booms like a drum when hit by impulses

Artist rendition of a plasma jet impact (yellow) generating standing waves at the magnetopause boundary (blue) and in the magnetosphere (green). The outer group of four THEMIS probes witnessed the flapping of the magnetopause over each satellite in succession, confirming the expected behaviour/frequency of the theorised magnetopause eigenmode wave. Credit: E. Masongsong/UCLA, M. Archer/QMUL, H.…

Possibility of recent underground volcanism on Mars

This is the Martian South Pole. A new study in Geophysical Research Letters argues there needs to be an underground source of heat for liquid water to exist underneath the polar ice cap. Credit: NASA A study published last year in the journal Science suggested liquid water is present beneath the south polar ice cap…

A fleeting moment in time

An evanescent shell of glowing gas spreading into space -- the planetary nebula ESO 577-24 -- dominates this image . This planetary nebula is...

Nature’s magnifying glass reveals unexpected intermediate mass exoplanets

Astronomers have found a new exoplanet that could alter the standing theory of planet formation. With a mass that's between that of Neptune and...

Astronomers map ‘light echoes’ of newly discovered black hole

A team of astronomers led by Erin Kara, the Neil Gehrels Prize Postdoctoral Fellow in the University of Maryland's Department of Astronomy, has charted...

First evidence of gigantic remains from star explosions

Astrophysicists have found the first ever evidence of gigantic remains being formed from repeated explosions on the surface of a dead star in the...

Giant pattern discovered in the clouds of planet Venus

A Japanese research group has identified a giant streak structure among the clouds covering planet Venus based on observation from the spacecraft Akatsuki. The...

Unusual supernova opens a rare window on the collapse of a...

An unusual supernova studied by multiple telescopes, including the SOAR telescope and other telescopes at the National Science Foundation's (NSF) Cerro Tololo Inter-American Observatory...

Thousands of stars turning into crystals

The first direct evidence of white dwarf stars solidifying into crystals has been discovered by astronomers at the University of Warwick, and our skies...

Astronomers find signatures of a 'messy' star that made its companion...

Many stars explode as luminous supernovae when, swollen with age, they run out of fuel for nuclear fusion. But some stars can go supernova...

Canada’s CHIME telescope detects second repeating fast radio burst

A Canadian-led team of scientists has found the second repeating fast radio burst (FRB) ever recorded. FRBs are short bursts of radio waves coming...

Hubble sees the brightest quasar in the early universe

The NASA/ESA Hubble Space Telescope has discovered the brightest quasar ever seen in the early Universe. After 20 years of searching, astronomers have identified...

Birth of a black hole or neutron star captured for first...

EVANSTON, Ill. --- A Northwestern University-led international team is getting closer to understanding the mysteriously bright object that burst in the northern sky this...

Exploring the Afterglow of the Big Bang

Researchers have developed a new way to improve our knowledge of the Big Bang by measuring radiation from its afterglow, called the cosmic microwave...

Newfound Star is the Most Distant Ever Observed

In a spiral galaxy more than halfway across the universe, astronomers have discovered what they say is the most distant star ever observed. Galaxies have...

SpaceX Will Build Its Next-Gen Mars Rocket in Los Angeles

SpaceX will build its "BFR" spaceship at a new facility in the Port of Los Angeles, Mayor Eric Garcetti announced yesterday.The company plans to...

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