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Galaxy

All articles tagged with #galaxy

A Galaxy Nearly All Dark Matter, Revealed by Four Star Clusters
space7 days ago

A Galaxy Nearly All Dark Matter, Revealed by Four Star Clusters

Astronomers have confirmed CDG-2, a faint galaxy in the Perseus cluster detected only through four globular clusters that provide about 16% of its light; by combining data from Hubble, Euclid, and Subaru, they estimate the galaxy’s total luminosity at roughly 6 million suns and a mass composed of 99.94%–99.98% dark matter, making it one of the most dark-matter–dominated galaxies and a valuable natural laboratory for studying dark matter and galaxy formation.

via WIRED|
#astronomy#cdg-2#dark-matter
Galaxy Analyst Sees Bitcoin Slipping Below $60K on Weakness Signals
markets24 days ago

Galaxy Analyst Sees Bitcoin Slipping Below $60K on Weakness Signals

A Galaxy analyst says Bitcoin could fall below $60K due to structural weakness in its price, with on-chain signals and the 200-week moving average pointing to a test of around $58K (and roughly $56K realized price). Absent near-term catalysts, BTC may drift toward the bottom of the supply gap near $70K before probing the $58K–$56K zone; historical drawdowns have often extended losses, though long-term holders could view a potential bottom in the current range as a buying point.

via Decrypt|
#bitcoin#galaxy#markets
Apple Eyes Stronger iPhone-Galaxy RCS Messaging with End-to-End Encryption
technology1 month ago

Apple Eyes Stronger iPhone-Galaxy RCS Messaging with End-to-End Encryption

A report suggests Apple is testing a new RCS profile and end-to-end encryption in iOS 26.3 Beta 2 to improve cross-platform messaging with Galaxy devices. RCS Universal Profile 3.0 adds E2EE, plus features like Tapback, inline replies, and edit/unsend, with four French carriers currently showing the code; Apple may also collaborate with Google to boost Android-to-iPhone RCS availability.

via SamMobile|
#cross-platform-messaging#end-to-end-encryption#galaxy
Precessing Black-Hole Jets Quench Star Formation in a Merging Galaxy
science1 month ago

Precessing Black-Hole Jets Quench Star Formation in a Merging Galaxy

Astronomers studying the nearby merging galaxy VV 340a detected kiloparsec-scale, precessing jets from its central black hole that heat and eject coronal gas, removing star-forming material at roughly 19 solar masses per year—an unusually large-scale example of black-hole feedback that may suppress star formation, though the merger could later reignite it.

via ScienceAlert|
#black-hole#feedback#galaxy
Down in Space Is Relative: Planes, Orbits, and the Cosmic Bearings
science1 month ago

Down in Space Is Relative: Planes, Orbits, and the Cosmic Bearings

There isn’t a universal ‘down’ in space. The solar system lies in a flattened disk (the ecliptic) because the collapsing rotating solar nebula shaped planets to orbit in roughly the same plane. The Milky Way has its own galactic plane (tilted about 60° to the ecliptic), and the Local Group sits in a nearly perpendicular supergalactic plane (about 84.5° to the galactic plane). Orientation of these planes comes from the initial rotation of matter when clouds collapsed, so every star, planet, and galaxy can have its own plane and direction depending on where you’re looking.

via The Conversation|
#astronomy#cosmology#galaxy
XRISM Captures Sharpest Image Yet of Fast-Spinning Black Hole
science1 month ago

XRISM Captures Sharpest Image Yet of Fast-Spinning Black Hole

XRISM, a joint JAXA-NASA mission, has captured the sharpest X-ray image to date of a rapidly spinning supermassive black hole in galaxy MCG–6-30-15, providing new insights into black hole spin and the environment near the event horizon by combining high-resolution data with other telescopes, and confirming the presence of material orbiting close to the speed of light.

via Universe Today|
#black-hole#galaxy#science
Astronauts and Telescopes Capture Stunning Views of Nearby Star-Forming Galaxies
science1 month ago

Astronauts and Telescopes Capture Stunning Views of Nearby Star-Forming Galaxies

A recent image captured by an astronaut aboard the ISS shows the Large Magellanic Cloud, a nearby dwarf galaxy rich in star-forming regions and supernova remnants, highlighting its significance in understanding stellar evolution and its dynamic role within the Local Group. The image emphasizes the contrast between Earth's atmosphere and the galaxy's energetic activity, inspiring public interest in cosmic exploration.

via The Daily Galaxy|
#astronomy#galaxy#large-magellanic-cloud