The temporal evolution of the universe, from the Big Bang to the present, is described by Einstein’s field equations of general relativity. However, there are…
Posts published in “Astronomy”
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Snapshots of the M87* black hole appearance, obtained through imaging / geometric modeling, and the EHT array of telescopes in 2009-2017. The diameter of all…
Scientists at MIT and elsewhere have discovered an Earth-sized planet that zips around its star every 3.14 days. Credit: NASA Ames/JPL-Caltech/T. Pyle, Christine Daniloff, MIT…
The debris objects shown in the images are an artist’s impression based on actual density data. However, the debris objects are shown at an exaggerated…
Coronal magnetic field lines obtained from the PFSS model. Credit: Z.-H. Yang et al., Science (2020) The Sun is a magnetized star. Its magnetic field…
Although the two galaxies in NGC 3256 appear merged when viewed in visible light, a second, bright nucleus is found hiding among the tangle of…
An IRAC infrared image of a filament of young star-forming cores, with the intensity of the dense gas emission overlaid in contours. New submillimeter observations…
These images showing nanojets on the Sun were captured by NASA’s IRIS mission on Apr. 3, 2014. Credit: NASA’s Goddard Space Flight Center NASA’s IRIS…
NGC 5585, a spiral galaxy on the tail of the Great Bear in the constellation of Ursa Major as captured by the Hubble Space Telescope.…
A Southwest Research Institute scientist has identified stellar phosphorus as a probable marker in narrowing the search for life in the cosmos. Stars with phosphorus…
Asteroid 4-Vesta is the second-largest body in the asteroid belt. Uranium-lead dating and other analytical methods tell researchers which meteorites come from Vesta and also…
This artistic impression depicts our Solar System neighbour Venus, where scientists have confirmed the detection of phosphine molecules. The molecules were detected in the Venusian…
WD 1856 b, a potential planet the size of Jupiter, orbits its dim white dwarf star every 36 hours and is about seven times larger.…
[embedded content]Understanding the Sun’s behavior is an important part of life in our solar system. Scientists use several indicators to track solar cycle progress. Credit:…
The Murchison Widefield Array radio telescope, a portion of which is pictured here, was used to explore hundreds of times more broadly than any previous…
Artist’s conception of a magnetar — a superdense neutron star with an extremely strong magnetic field. In this illustration, the magnetar is emitting a burst…
Image shows a CME erupting from the Sun’s surface, captured from either side by imaging cameras on board the two STEREO spacecraft. The red and…
This image gallery of stellar winds around cool ageing stars shows a variety of morphologies, including disks, cones, and spirals. The blue colour represents material…
A planet orbiting a small star produces strong atmospheric signals when it passes in front, or “transits,” its host star, as pictured above. White dwarfs…
For the first time, an intact, Jupiter-sized, exoplanet has been discovered orbiting close to a white dwarf star. Credit: International Gemini Observatory/NOIRLab/NSF/AURA/J. Pollard For the…