Scientists have studied a population of the darkest, most lightweight galaxies known, each containing 99% dark matter. The findings suggest a major puzzle known as the "Missing Dwarf Galaxy" problem is not as severe as previously thought, and may have been solved completely.
Edwin Hubble once called IC 10 "one of the most curious objects in the sky," and new observations of the extremely faint, lightweight dwarf galaxy are giving scientists new clues about how populations of stars are born. Scientists studying the IC 10 galaxy may soon understand how stars might have looked like in the distant past, when the universe was in a younger, more pristine form.
Scientists have found a dusty disk around a young star that has a needle-like shape. It is unknown if the needle formation is a temporary phenomenon. A scientist on the project said it presents a number of new challenges for theorists. Images available from http://www.keckobservatory.org/news.php
A newly discovered dwarf galaxy formed in a region of space far from our own and is falling into our system for the first time in its history. The galaxy proves galaxies are still arriving in our Local Group and serves as an important test of galaxy formation.
Scientists have discovered that certain fundamental properties of galaxies have changed very little over the last 8 billion years. Unexpectedly, the relationship between a galaxy's mass and a new speed indicator that measures movement of its stars and gas remains the same for all forms of galaxies, from spirals like our own Milky Way, to elliptical galaxies, and even the so-called "train wrecks" left over by galactic mergers.
Scientists looking at a nearby star-forming region now have the data to understand how the most common types of stars in the universe form and change over time. Large telescopes like 33-foot (10-meter) Keck telescope in Hawaii can study these stars, where previously they were too small, relatively cool and faint to be studied in large numbers.
The first detection of a planet-forming disk in the environment of a dying star.
Astronomers using the W. M. Keck Observatory have discovered a triple quasar. If quasars are randomly distributed in space, the odds of finding a trio of physically distinct quasars at these close separations has been estimated to be 1 in 200 trillion.
The National Science Foundation awards $2 million to W. M. Keck Observatory to advance the study of black holes and planets orbiting stars other than our Sun.
Scientists at the W. M. Keck Observatory in Hawaii have discovered a supernovae that does not fit the standard model for these types of extreme explosions. The results require scientists rethink their basic understanding of how stars explode as supernovae.
Astronomy laser helps scientists see 10 times better than before. Astronomers are using this laser to find new objects in our solar system and study new objects in the Milky Way galaxy never before seen.
Scientists witness the initial steps toward planet formation in the famous Orion Nebula.
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