Reference Terms
from Wikipedia, the free encyclopedia
Stellar evolution
In astronomy, stellar evolution is the sequence of changes that a star undergoes during its lifetime; the hundreds of thousands, millions or billions of years during which it emits light and heat.
Note: The above text is excerpted from the Wikipedia article "Stellar evolution", which has been released under the GNU Free Documentation License.
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Space & Time News
May 15, 2025
May 14, 2025 — Researchers propose a new theory for the origin of dark matter, the invisible substance thought to give the universe its shape and structure. Their mathematical models show that dark matter could ...
May 14, 2025 — A new study achieves unprecedented accuracy in modelling extreme cosmic events like black hole and neutron star collisions by calculating the fifth post-Minkowskian (5PM) order, crucial for interpreting gravitational wave data from current and ...
May 13, 2025 — Astronomers have developed a groundbreaking computer simulation to explore, in unprecedented detail, magnetism and turbulence in the interstellar medium (ISM) -- the vast ocean of gas and charged ...
May 8, 2025 — In space, energetic neutrinos are usually paired with energetic gamma rays. Galaxy NGC 1068, however, emits strong neutrinos and weak gamma rays, which presents a puzzle for scientists to solve. A new paper posits that helium nuclei collide with ...
Latest Headlines
updated 12:56 pm ET
May 15, 2025 — Using new observations with the ALMA telescope array in Chile, researchers have compiled the most precise map of three regions in the Milky Way's Central Molecular Zone to date, providing valuable ...
May 14, 2025 — By analyzing how far material ejected from an impact crater flies, scientists can locate buried glaciers and other interesting subsurface ...
May 14, 2025 — Apples-to-apples comparisons in the distant universe are hard to come by. Whether the subject is dwarf galaxies, supermassive black holes, or 'hot Jupiters,' astronomers can spend months or years ...
May 12, 2025 — The universe is decaying much faster than thought. This is shown by calculations of scientists on the so-called Hawking radiation. They calculate that the last stellar remnants take about 10^78 years ...
May 12, 2025 — Massive ripples in the very fabric of space and time wash over Earth constantly, although you'd never notice. An astrophysicist is trying a new search for these gravitational ...
May 9, 2025 — Researchers have developed an innovative photodetector capable of detecting a broad range of mid-infrared ...
May 9, 2025 — A research team used the German environmental satellite EnMAP (Environmental Mapping and Analysis Program) to simultaneously detect the two key air ...
May 8, 2025 — A long period of drought in North America has been recognized by scientists for decades. A new study links the severe climate to a change in Earth's ...
May 6, 2025 — In the quest toward finding the correct theory of quantum gravity, physicists have been testing the holographic principle which, they say, is a key property of any valid theory of quantum ...
May 7, 2025 — Magnetar flares, colossal cosmic explosions, may be directly responsible for the creation and distribution of heavy elements across the universe, suggests a new ...