TOPICSGalaxy
Galaxy
A galaxy is any of the systems of stars and interstellar matter that make up the universe. A galaxy is composed of stars, stellar remnants, interstellar gas, dust, and dark matter that are all held together by gravity.
Nature has provided an immensely varied array of galaxies, ranging from faint, diffuse dwarf objects to brilliant spiral-shaped giants.
A new study shows, for the 1st time, that gravity can exist without mass
Mitigating the need for hypothetical dark matter.
Milky Way’s last major galactic collision happened much more recently than previously thought
The data supporting these findings were collected via the European Space Agency’s Gaia spacecraft.
Scientists discovered the slowest-spinning radio-emitting neutron star
Most collapsed stars rotate faster than once per second. This one takes nearly an hour.
ESA’s Euclid celebrates first science: New views of the Universe
The never-before-seen images demonstrate Euclid’s ability to unravel the secrets of the cosmos.
Giant magnetic toroids found in Milky Way’s Halo
A new understanding of the physics of our Milky Way.
“Plunging regions” exist around black holes in space
Einstein’s theory predicted that this final plunge would exist.
Most distant black hole merger to date observed
The first time that this phenomenon has been detected so early in the Universe.
NASA’s Chandra notices venting galactic center
The chimney and vent are about 26,000 light-years from Earth.
Hubble captures a galaxy with a voracious Black Hole
The galaxy NGC 4951 is a fascinating example of a Seyfert galaxy.
Unveiling the mystery of stellar metal pollution: The hunger of white dwarfs
Hungry, hungry white dwarfs!
Astronomers observe elusive stellar light surrounding ancient quasars
The observations suggest some of earliest “monster” black holes grew from massive cosmic seeds.
The first high-resolution map of a massive explosion
A gas outflow so large that it would take 20,000 years for light to travel from one side to the other.