Stepping Inside Supernova Remnant Cassiopeia A
Cassiopeia A, the youngest known supernova remnant in the Milky Way, is the remains of a star that exploded almost 400 years ago. The star…
Cassiopeia A, the youngest known supernova remnant in the Milky Way, is the remains of a star that exploded almost 400 years ago. The star…
A Caltech-led team of researchers has observed the peculiar death of a massive star that exploded in a surprisingly faint and rapidly fading supernova. These…
Astronomers typically study objects that are visible night after night or explode suddenly, like supernovas, but Casey Law is scouring vast amounts of data in…
Researchers have found white dwarf stars with masses close to the maximum stable mass (called the Chandrasekhar mass) are likely to produce large amounts of…
The explosions of stars, known as supernovae, can be so bright they outshine their host galaxies. They take months or years to fade away, and…
At the end of its life, a red supergiant star explodes in a hydrogen-rich supernova. By comparing observation results to simulation models, an international research…
An international team of researchers has proposed a new method to investigate the inner workings of supernovae explosions. This new method uses meteorites and is…
What happens when a star behaves like it exploded, but it’s still there? About 170 years ago, astronomers witnessed a major outburst by Eta Carinae,…
Thin, red veins of energized gas mark the location of one of the larger supernova remnants in the Milky Way galaxy in this image from…
For the first time, astronomers have directly observed the magnetism in one of astronomy’s most studied objects: the remains of Supernova 1987A (SN 1987A), a…
In astronomy, the devil is in the details — as this image, taken by the NASA/ESA Hubble Space Telescope’s Advanced Camera for Surveys and Wide-Field…
The K2 Mission, an extension of the immensely successful NASA Kepler mission to search for exoplanets, has discovered nearly one hundred new exoplanets so far….
Seventeen years ago, astronomers witnessed a supernova go off 40 million light-years away in the galaxy called NGC 7424, located in the southern constellation Grus,…
A “core-collapse” supernova occurs when the iron core of a massive star collapses under the force of gravity and then rebounds, generating pressure waves and…
Ordinarily, a supernova marks the death of a mammoth star, which then briefly outshines an entire galaxy before fading away. Not so for a baffling…
In 1929 Edwin Hubble surprised many people – including Albert Einstein – when he showed that the universe is expanding. Another bombshell came in 1998…
Thanks to lucky snapshots taken by an amateur astronomer in Argentina, scientists have obtained their first view of the initial burst of light from the…
Dust is everywhere — not just in your attic or under your bed, but also in outer space. To astronomers, dust can be a nuisance…