Topic: Sierra Nevada - CSMonitor.com

How much water in that snowpack? Scientists seek a better gauge.

More accurate, more frequent measurements of mountain snowpacks will allow water managers to mete out reservoirs with greater confidence. Two watersheds in the western US are testing grounds for a new aerial approach.

On Earth Day 2013: 13 excellent books to consume

Spaceflight conference: No NASA reps, but Sigourney Weaver is there

Backchannels A gold rush in Indonesia you've never heard of

How sequester cuts could set back scientific research

Climate change's latest victim: the wolverine

Giant leap in race to replace space shuttle? Dream Chaser gets big boost.

In Pacific Northwest, a welcome break from a very wet week

More rain-drenched days ahead in North California (+video)

Chapter & Verse A thriller by Spiro Agnew? Strange but true

Dragon capsule reaches space station, chocolate ripple ice cream intact

Go west, young mountain lion: California offers lush habitat, easy prey

NASA awards $1.1 billion to Boeing, SpaceX, Sierra Nevada Corporation

NASA launches $1.1 billion deal with private spaceflight companies (+video)

Editor's Blog Tracing America's green roots

SpaceX capsule one step closer to manned flight, says NASA

San Bernardino bankruptcy: Exacerbated by criminal acts?

SpaceX launch: private industry inspires new generation of rocketeers (+video)

Fungus kills frogs by dehydration

Mysterious explosion and daylight fireball in Nevada, California skies (+video)

NASA calls for new spaceships to taxi astronauts to space station

NASA goes commercial in its quest for extra space taxis

How could Virginia quake be felt in Canada and crack the Washington Monument?

Rebuilding after tornadoes: two designs that could save lives in another storm

Gold mine reopens in California desert