News
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- Health & Medicine
New test could discern serious condition early after bone marrow transplant
Protein level in blood reveals graft-versus-host disease, may indicate severity of this complication
By Nathan Seppa - Earth
Footprints could push back tetrapod origins
Newly discovered trackways much older than previous evidence for sea-to-land transition.
By Sid Perkins - Life
Moss counters shortness with A-bomb-style clouds
Sphagnum overcomes drag by launching its spores in vortex rings.
By Susan Milius - Space
Comets don’t all start out on the fringe
A new model suggests that comets also come from the inner Oort Cloud and offers a way to resolve a massive problem about the early solar system.
- Space
Hubble goes deep and wide for new view of galaxies
A newly released multiwavelength image portrays 12 billion years of cosmic history, depicting the assembly of galaxies in unprecedented detail.
By Ron Cowen - Health & Medicine
Celebrex combats skin cancer in vulnerable group
Anti-inflammatory drug limits number of tumors in patients with hereditary condition
By Nathan Seppa - Space
Parting Eta Carinae’s clouds reveals more clouds
New images show the nearby star system's inner beauty.
- Space
Plenty of black holes do-si-do
Team finds 33 merging galaxies with 'waltzing' black-hole pairs, suggesting the phenomenon is more common than thought.
- Space
Kepler space telescope finds its first extrasolar planets
The NASA mission uncovers one Neptune-like and four Jupiter-like bodies.
By Ron Cowen - Space
New-found galaxies may be farthest back in time and space yet
Potential finding uses data that push limits of current technology.
By Ron Cowen - Earth
Age of solar system needs a fresh look
Honed measurements show age overshot by amount significant to earliest stage of formation.