An atmospheric peculiarity the Earth shares with Jupiter,
Saturn, Uranus and Neptune is likely common to billions of planets,
astronomers have found, and knowing that may help in the search for
potentially habitable worlds.
Which climate effects do clouds have? Under what conditions
do they warm or cool the atmosphere? Today, after more than five
years of preparation, the specially equipped research aircraft HALO
(High Altitude and Long Range Research Aircraft) takes off for its
first measurement flight in atmospheric research.
A massive ejection of material from the sun initially
traveling at over 7 million miles per hour that narrowly missed
Earth last year is an event solar scientists hope will open the
eyes of policymakers regarding the impacts and mitigation of severe
The home team holds the advantage over visitors – at least in
the plant world. However, a mere handful of genetic adaptations
could even the playing field. Researchers and their collaborators
found that plant adaptation to different environments involves
tradeoffs in performance.
A new study documents the historic sediment record along the
Danube River delta, and offers simple and inexpensive strategies to
enhance deltas' natural ability to trap sediment and maintain their
floodplains against rising sea levels and increasingly frequent and
NASA's Curiosity rover is providing vital insight about Mars'
past and current environments that will aid plans for future
robotic and human missions. In a little more than a year on the Red
Planet, the mobile Mars Science Laboratory has determined the age
of a Martian rock, found evidence the planet could have sustained
microbial life, taken the first readings of radiation on the
surface, and shown how natural erosion could reveal the building
blocks of life.
Humankind is by nature inquisitive, especially about the
prospect of life on other planets and whether or not we are alone.
The aptly named Curiosity, a NASA Mars rover, has been scouring
that planet's surface as a potential habitat for life, either past
or present. Now there are some exciting new findings.
Scientists are digging deep into the Earth's surface
collecting census data on the microbial denizens of the hardened
rocks. What they're finding is that, even miles deep and halfway
across the globe, many of these communities are somehow quite
Scientists have discovered a novel chemical lurking in the
atmosphere that appears to be a long-lived greenhouse gas. The
chemical -- perfluorotributylamine -- is the most radiatively
efficient chemical found to date, breaking all other chemical
records for its potential to impact climate.