Astronomy
- Astronomy
An Earth-sized hell circles faraway star
Kepler-78b, an Earth-sized, extremely hot exoplanet made of rock and iron, is the smallest with known diameter and mass.
- Astronomy
Solar system with seven planets discovered
Kepler data has identified a star with a seven-planet system structured similarly to the sun’s clutch of planets.
- Astronomy
Oort cloud tosses astronomers a cometary curveball
In late November, ISON will deliver debris from the dawn of the solar system to Earth’s doorstep.
- Astronomy
Most distant galaxy discovered
Astronomers have observed a galaxy as it existed 700 million years after Big Bang.
-
- Environment
Feedback
Readers respond to "Solving soot," trade-offs of horn size for male Soay sheep and the huge galactic explosion story from 50 years ago.
- Astronomy
Quiet maximum
By almost any measure, this solar maximum has been pathetic. No more than 67 sunspots have appeared in a month so far; at the last peak, in 2000, that number was above 120.
-
- Astronomy
Most distant galaxy lens discovered
Astronomers have discovered a galaxy about 9.4 billion light-years from Earth that is magnifying the light of an even more distant galaxy. It’s the most distant gravitational lens found to date.
- Astronomy
Galaxy’s gas molecules reveal its structure
Astronomers have tracked carbon monoxide flowing both toward and away from NGC 1433’s central supermassive black hole.
- Astronomy
Galaxy’s petal-like structures came from collision
A cosmic crash of two huge masses of stars, gas and dust probably gave way to a new galactic structure with both young and old star clusters.
- Astronomy
Water seen in rubble around star
Hubble sees debris that was part of an asteroid with the ingredients for habitable planets.
