Reference Terms
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Barred spiral galaxy
A barred spiral galaxy is a spiral galaxy with a band of bright stars emerging from the center and running across the middle of the galaxy.
Note: The above text is excerpted from the Wikipedia article "Barred spiral galaxy", which has been released under the GNU Free Documentation License.
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Space & Time News
December 17, 2024
Dec. 13, 2024 — The galaxy M87, located in the Virgo constellation, provided the first-ever photo of a black hole in 2019, when the Event Horizon Telescope captured an image of the supermassive black hole at the ...
Dec. 12, 2024 — Stars similar to the Sun produce a gigantic outburst of radiation on average about once every hundred years per star. Such superflares release more energy than a trillion hydrogen bombs and make all previously recorded solar flares pale in ...
Dec. 11, 2024 — Stunning new photographs by a team of astronomers have revealed a newly forming galaxy that looks remarkably similar to a young Milky Way. The extraordinary images give us an unprecedented picture of what our own galaxy might have looked like when ...
Dec. 9, 2024 — New observations from the James Webb Space Telescope suggest that a new feature in the universe -- not a flaw in telescope measurements -- may be behind the decade-long mystery of why the universe is expanding faster today than it did in its infancy ...
Latest Headlines
updated 12:56 pm ET
Dec. 17, 2024 — Microgravity is known to alter the muscles, bones, the immune system and cogni tion, but little is known about its specific impact on the brain. To ...
Dec. 17, 2024 — After taking the first images of black holes, the groundbreaking Event Horizon Telescope (EHT) is poised to reveal how black holes launch powerful ...
Dec. 17, 2024 — An international team of researchers has detected a binary star orbiting close to Sagittarius A*, the supermassive black hole at the centre of our galaxy. It is the first time a stellar pair has been ...
Dec. 16, 2024 — The combination of low temperature, atmospheric pressure and water vapor pressure on Mars means any liquid water found there would likely freeze, boil or evaporate immediately, making its presence ...
Dec. 16, 2024 — Recent measurements with the James Webb Space Telescope (JWST) cast doubt on the current understanding of the exoplanet Trappist-1 b's nature. Until now, it was assumed to be a dark rocky planet ...
Dec. 16, 2024 — Anthropologists argue physical artifacts of human exploration on Mars deserve cataloging, preservation and care in order to chronicle humanity's ...
Dec. 13, 2024 — A new study points to why, and how, Io became the most volcanic body in the solar ...
Dec. 13, 2024 — New radio astronomy observations of a planetary system in the process of forming show that once the first planets form close to the central star, these planets can help shepherd the material to form ...
Dec. 11, 2024 — The Sun generates its tremendous energy through the process of nuclear fusion. At the same time it releases a continuous stream of neutrinos -- ...
Dec. 9, 2024 — Photonic space-time crystals are materials that could increase the performance and efficiency of wireless communication or laser technologies. They feature a periodic arrangement of special materials ...