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1,778 articles from NASA

The Vanishing Rings of Saturn

Amateur astronomers around the world have noticed, something is happening to Saturn. The planet's rings are rapidly narrowing and, if this continues, before long they'll be just a wafer-thin line almost invisible to backyard telescopes.


WEDNESDAY 12. MARCH 2008


Women Drivers on Mars

To celebrate Women's History Month, an all-female team of scientists and engineers has taken control of Mars rover Spirit.


FRIDAY 7. MARCH 2008


Dark Halos Discovered on Mercury

The surprises continue. Scientists studying the harvest of photos from MESSENGER's Jan. 14th flyby of Mercury have found several craters with strange dark halos and one crater with a spectacularly shiny bottom.

Auroras in Broad Daylight

Imagine living on a planet where Northern Lights fill the heavens at all hours of the day. Around the clock, even in broad daylight, luminous curtains shimmer and ripple across the sky. News flash: Astronomers have discovered such a planet. Its name is Earth.


TUESDAY 4. MARCH 2008


Avalanches on Mars

A NASA spacecraft in orbit around Mars has taken the first ever image of active avalanches near the Red Planet's north pole.


SATURDAY 1. MARCH 2008


New Radar Maps of the Moon

New high-resolution radar maps of the Moon's south pole reveal a fantastic land with peaks as high as Mt. McKinley and crater floors four times deeper than the Grand Canyon.


THURSDAY 21. FEBRUARY 2008


Who's Orbiting the Moon?

Do you know who's orbiting the moon? The answer might surprise you. Find out in today's story from Science@NASA.


THURSDAY 14. FEBRUARY 2008


Total Lunar Eclipse

On Wednesday evening, February 20th, the full Moon over the Americas will turn a delightful shade of red and possibly turquoise, too. It's a total lunar eclipse—the last one until Dec. 2010.


SATURDAY 9. FEBRUARY 2008


Name that Space Telescope!

NASA is inviting members of the general public from around the world to suggest a new name for the Gamma-ray Large Area Space Telescope, otherwise known as GLAST, before it launches in mid-2008.


THURSDAY 7. FEBRUARY 2008


Extremophile Hunt Begins

A team of scientists has just set off to explore a strange lake in Antarctica, which may be home to exotic forms of microscopic life.


THURSDAY 31. JANUARY 2008


Surprises from Mercury

NASA's Messenger spacecraft has beamed back some surprising new data from the planet Mercury. Highlights include a weird crater nicknamed "the Spider," a planetary tail of hydrogen atoms, and measurements that show giant Caloris basin is even bigger than researchers thought.


TUESDAY 29. JANUARY 2008



THURSDAY 24. JANUARY 2008


A Violent History of Time

NASA is preparing to launch a new space telescope named GLAST to study the most violent explosions in the history of our Universe.


MONDAY 21. JANUARY 2008


Mercury Flyby Sets Stage for New Discoveries

Last week's historic flyby of Mercury by NASA's MESSENGER spacecraft gathered 500 megabytes of data and more than a thousand high-resolution photos covering nearly six million square miles of previously unseen terrain.


THURSDAY 17. JANUARY 2008


Radical New Lab Fights Disease Using Satellites

A cutting-edge laboratory has opened in Alabama. Its mission: to combat diseases ranging from asthma to malaria to stroke using data from NASA satellites. Space scientists and public health officials are working together to train the doctors of tomorrow in this far-out approach to medicine.


TUESDAY 15. JANUARY 2008


Exploring the Cosmos in Braille

Images from NASA telescopes are jewels of the space program, marvelous to behold. But how do you behold them when you can't see? The answer lies between the covers of a new NASA-funded book written in Braille, Touch the Invisible Sky.


MONDAY 14. JANUARY 2008



FRIDAY 11. JANUARY 2008


Solar Cycle 24 Begins

Hang on to your cell phones, a new solar cycle is underway. Solar Cycle 24 began last week with the appearance of a magnetically "backward" high-latitude sunspot.


FRIDAY 28. DECEMBER 2007



SATURDAY 22. DECEMBER 2007


Asteroid Threatens to Hit Mars

NASA-funded astronomers are monitoring a Tunguska-sized asteroid that will pass within 30,000 miles of Mars on Jan. 30, 2008. Based on data currently available, the space rock has a 1-in-75 chance of actually hitting Mars and blasting a crater more than half-a-mile wide.


FRIDAY 21. DECEMBER 2007


Christmas Eve Sky Show

Consider it an early Christmas gift: On Dec. 24th the Moon and Mars are putting on a beautiful late-night sky show.


TUESDAY 18. DECEMBER 2007



SUNDAY 16. DECEMBER 2007


Is a New Solar Cycle About to Begin?

The solar physics community is abuzz this week. No, there haven't been any great eruptions or solar storms. The source of the excitement is a modest knot of magnetism that popped up on the sun, possibly heralding the start of a new solar cycle.


WEDNESDAY 12. DECEMBER 2007


NASA Spacecraft Make New Discoveries about Northern Lights

NASA's fleet of THEMIS satellites have made some surprising new discoveries about outbursts of Northern Lights and the source of their power. The discoveries include giant magnetic ropes that connect Earth to the Sun and explosions in the outskirts of Earth's magnetic field.


THURSDAY 6. DECEMBER 2007