Shining New Light on Dark Matter: Kathryn Zurek talks about the ongoing search for an invisible substance that permeates the galaxy. About 80 percent of…
Posts published in “Astrophysics”
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WFIRST will make its microlensing observations in the direction of the center of the Milky Way galaxy. The higher density of stars will yield more…
This artist’s impression depicts a star being torn apart by an intermediate-mass black hole (IMBH), surrounded by an accretion disc. This thin, rotating disc of…
Artist impression of a double-star system. Credit: ESO/L. Calçada Humans have been studying the light from stars since the beginning of our history; however, we’ve…
The path of a light beam is bent by the presence of mass, as explained by General Relativity. A massive body can therefore act like…
Artist’s impression of the binary neutron star merger producing GW190425. Credit: National Science Foundation/LIGO/Sonoma State University/A. Simonnet A new collaborative study with the ARC Centre…
This is an illustration of a distant galaxy with an active quasar at its center. A quasar emits exceptionally large amounts of energy generated by…
Decaying dark matter should produce a bright and spherical halo of X-ray emission around the center of the Milky Way that could be detectable when…
The lower horizontal axis is the axion mass, the upper horizontal axis is the microwave frequency corresponding to the mass, and the vertical axis is…
New simulation-based study on sleeping cataclysmic binaries supports contested 35-year-old predictions, shows that observable novae are just “tip of the iceberg.” Almost 35 years ago,…
A neutron star is the densest object astronomers can observe directly, crushing half a million times Earth’s mass into a sphere about 22 kilometers across,…
A dark matter map, created by Japanese astronomers using weak lensing. The background image of a wide field of galaxies was analyzed for weak lensing…
This computer simulation of a supernova shows how matter is ejected from the heart of an exploding star. Credit: © 2020 RIKEN Astrophysical Big Bang…
Is this what the heliosphere looks like? New research suggests so. The size and shape of the magnetic “force field” that protects our solar system…
Artist impression of a double sunset on a ‘Tatooine’ exoplanet forming in a circumbinary disk that is misaligned with the orbits of its binary stars.…
This is an illustration of a distant galaxy with an active quasar at its center. A quasar emits exceptionally large amounts of energy generated by…
A supermassive black hole in the Perseus galaxy cluster located about 240 million light-years from Earth. The main image is about 550,000 light-years across and…
The image of a black hole has a bright ring of emission surrounding a “shadow” cast by the black hole. This ring is composed of…
This image shows the sum of 15 independent tracings of the spiral structure of the same galaxy displayed using a violet to red rainbow color…
This illustration shows a nightside view of the exoplanet WASP-76b. The ultra-hot giant exoplanet has a dayside where temperatures climb above 2400 degrees Celsius, high…