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2,111 articles from NASA


FRIDAY 11. JULY 2008


What's Wrong with the Sun?

The sun is entering its 3rd year of eerie calm. Sunspots are rare and solar flares simply aren't happening. Is this "solar minimum" lasting longer than it should? A NASA scientist has examined centuries of sunspot data to find the answer.


THURSDAY 10. JULY 2008


A Telescope Made of Moondust

Mix moondust with epoxy, add a dash of carbon nanotubes, and spin. The result? A parabolic mirror perfectly suited for a lunar observatory. A NASA scientist has discovered this new recipe for making telescopes out of moondust, and to prove it works he has spun a "moondust mirror" here on Earth.


FRIDAY 4. JULY 2008


New Discoveries at Mercury

Mercury's magnetic field is "alive." Volcanic vents ring the planet's giant Caloris basin while the planet itself is surrounded by a plasma nebula of unexpected complexity.


WEDNESDAY 2. JULY 2008



SATURDAY 28. JUNE 2008


NASA to Attempt Historic Solar Sail Deployment

This summer, NASA engineers will try to realize a dream older than the Space Age itself: the deployment of a working solar sail in Earth orbit. The name of the device is NanoSail-D and it is scheduled for launch onboard a SpaceX Falcon 1 rocket as early as July 29, 2008.


SUNDAY 22. JUNE 2008


Apollo Relic Reveals its Secrets

In 1967, Surveyor 3 landed on the Moon. Two years later, Apollo astronauts visited the little unmanned spacecraft and brought pieces of it home to Earth. Now, a portion of Surveyor's robotic arm, the scoop it used to sample moondust, is teaching researchers some long-lost secrets.


MONDAY 16. JUNE 2008


Solstice Moon Illusion

Sometimes you just can't believe your eyes. This week is one of those times. Check out the full Moon on June 18th and prepare to be deceived!


THURSDAY 12. JUNE 2008


NASA's Newest Space Telescope Blasts Off

NASA's Gamma-ray Large Area Space Telescope left Earth today onboard a Delta II rocket. "The entire GLAST Team is elated," reports program manager Kevin Grady of NASA's Goddard Space Flight Center. "The observatory is now on-orbit and all systems continue to operate as planned."


TUESDAY 10. JUNE 2008



THURSDAY 29. MAY 2008


Strange Ring Found Circling Dead Star

NASA's Spitzer Space Telescope has found a bizarre ring of material around the magnetic remains of a star that blasted itself to smithereens. Although rings and spheres of material are common in the universe, this one is not like any ring astronomers have ever seen before.


WEDNESDAY 28. MAY 2008


Cartwheel Coronal Mass Ejection

Imagine a billion-ton cloud of gas launching itself off the surface of the sun and then ... doing a cartwheel. That's exactly what happened on April 9, 2008, when a coronal mass ejection or "CME" pirouetted over the sun's limb in full view of an international fleet of spacecraft.


MONDAY 26. MAY 2008


Phoenix Lands on Mars

NASA's Phoenix spacecraft landed in the northern polar region of Mars Sunday to begin three months of examining a site chosen for its likelihood of having frozen water within reach of the lander's robotic arm.


THURSDAY 22. MAY 2008


Lunar GRAIL

Gravitationally speaking, the moon is a strange place. Satellites in lunar orbit feel odd, sideways tugs and end up nose down in the moondust. Astronauts standing in the middle of lunar lava seas weigh more than they do standing on the shore. A new NASA mission named GRAIL aims to map the moon's quirky gravity field and thus pave the way for future exploration.


WEDNESDAY 21. MAY 2008


100 Explosions on the Moon

In 2005, NASA astronomers began watching the Moon to see how often meteoroids crashed into the lunar surface. They've just video-taped their 100th explosion.


WEDNESDAY 14. MAY 2008



TUESDAY 13. MAY 2008


Phoenix Set to Land on Mars

NASA's Phoenix lander is getting ready to touch down on Mars and begin an unprecedented investigation of the Red Planet's arctic realm.


SATURDAY 10. MAY 2008


Space Station Tricorder

Astronauts are using a Star Trek tricorder-like device to keep track of microscopic life forms onboard the International Space Station.


FRIDAY 9. MAY 2008


Planets by the Dozen

A NASA-funded survey set to begin in 2008 could dramatically increase the number of known planets outside our solar system.


TUESDAY 6. MAY 2008


A Super Solar Flare

In September 1859, a solar flare erupted so intense that the explosion itself was visible to the human eye. A ferocious geomagnetic storm ensued in which Northern Lights descended as far south as Cuba, the Bahamas and Hawaii. Meanwhile, telegraph engineers disconnected their batteries and powered communications by electricity from the auroras! Could it happen again?


WEDNESDAY 30. APRIL 2008



SATURDAY 26. APRIL 2008


The Physics of Whipped Cream

An experiment in space has shed new light on the puzzling physics of some everyday substances such as blood, ketchup, motor oil and whipped cream.


MONDAY 21. APRIL 2008


Moondust and Duct Tape

Going to the Moon? Don't forget your duct tape. Thirty-six years ago when Apollo 17 astronauts found themselves a quarter million miles from home with a damaged moonbuggy, a roll of "good old fashioned American gray tape" saved the day.


THURSDAY 17. APRIL 2008