Physics

NASA Invites Media Inside World's Largest Vacuum Chamber

The world's largest thermal-vacuum chamber will be open to news media at NASA's Johnson Space Center in Houston on Thursday, April 4.

First Images Released From Newest Earth Observation Satellite

NASA and the Department of the Interior's U.S. Geological Survey (USGS) have released the first images from the Landsat Data Continuity Mission (LDCM) satellite, which was launched Feb. 11.

What Color is the Red Planet, Really?

Sounds like a trick question, doesn't it? Sort of like "Who is buried in Grant's Tomb?" And  yet the answer keeps confounding a lot of smart people. (DISCOVER even published a whole feature on the question.) Now the issue keeps coming up again in the latest images from the Curiosity rover. Blue skies on Mars? Can that be right? Which of these images shows what Mars really looks like?

The very first Viking images from the surface of Mars in July, 1976 showed blue skies, largely because tha

NIST tests underscore potential hazards of green laser pointers

Using a low-cost apparatus designed to quickly and accurately measure the properties of handheld laser devices, National Institute of Standards and Technology (NIST) researchers tested 122 laser pointers and found that nearly 90 percent of green pointers and about 44 percent of red pointers tested were out of compliance with federal safety regulations. The NIST test apparatus was designed so that it can be replicated easily by other institutions.

Nike Laser focuses on nuclear fusion

Researchers have successfully demonstrated a single-step focal zooming process to maximize the efficiency of the world's largest operating krypton fluoride gas laser.

NASA Begins New Season of Arctic Ice Science Flights

NASA's Operation IceBridge scientists have begun another season of research activity over Arctic ice sheets and sea ice with the first of a series of science flights from Greenland completed on Wednesday.

New Space Station Crew Members to Launch and Dock the Same Day

Three new crew members are set to launch to the International Space Station on a six-hour flight to travel from the launch pad to their destination.

NASA Administrator Congratulates Apollo Engine Recovery Team

The following is a statement from NASA Administrator Charles Bolden on the successful recovery of Apollo Saturn V first stage engines announced Wednesday by Jeff Bezos, the founder and Chief Executive Officer of the aerospace company Blue Origin and Amazon.com.

Researchers' new method may sharpen microscopic images

(Phys.org) —UT Dallas researchers are developing a new low-light imaging method that could improve a number of scientific applications, including the microscopic imaging of single molecules in cancer research.

Observed: The Day the Universe Lit Up

Although it was born in the fireball brilliance of the Big Bang, the universe spent much of its infancy in the dark. Clouds of primordial particles expanded and cooled forming atoms--hydrogen, mostly that were opaque to light. Galaxies did not yet exist. Even stars did not yet exist. These are known as the cosmic Dark Ages. That era is shrouded in mystery, since scientists literally cannot see what was happening then.

Then gravity did its work. Gas collapsed into bright stars, larger clumping

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