Astronomy
- Astronomy
Weighing In on a Star: A stellar size limit
A new study suggests that no star in our galaxy can weigh more than 150 times the mass of the sun.
- Astronomy
Radiation from a baby star
X-ray telescopes have captured the earliest and clearest view of the core of a gas cloud about to transform into a star.
- Astronomy
Nursery Pictures: Astronomers glimpse primordial clustering
Astronomers have found the earliest traces of galaxy clustering, from a period just 1 billion years after the birth of the universe.
- Astronomy
Hole power
New computer simulations and observations are adding to the evidence that supermassive black holes control the growth of the galaxies they inhabit, wielding an influence far beyond their gravitational grasp.
- Astronomy
Big Flash: Record-breaking explosion in outer space
The brightest flash of light ever recorded from beyond the solar system could help account for a puzzling group of extremely short-lived gamma-ray bursts from distant galaxies.
- Astronomy
Ghostly Galaxy: Massive, dark cloud intrigues scientists
Astronomers say they have found the only known galaxy devoid of stars.
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- Astronomy
Images from the Edge
Examining nearby reaches of the universe at ultraviolet wavelengths, a recently launched spacecraft has found regions of star birth in unexpected places.
- Astronomy
Swift detection of a gamma-ray burst
A telescope has for the first time detected X rays directly from an ongoing gamma-ray burst, the most powerful type of explosion in the universe.
- Astronomy
Proton storm erupts from the sun
A storm of high-speed protons, triggered by a Jan. 20 solar eruption, bombarded spacecraft and was the most energetic such squall recorded in 15 years.
- Astronomy
Puny Parent? Planets may form around tiny orbs
Barely more massive than a planet itself, a tiny failed star 500 light-years from Earth is nonetheless cloaked in a disk of gas and dust from which planets may coalesce.
- Astronomy
Hubble views bar in galaxy
The Hubble Space Telescope has captured a strikingly detailed image of the starlit arms, glowing gas, and dark dust clouds of a barred spiral galaxy called NGC 1300, which lies 69 million light-years from Earth.
