Science & Astronomy Archive
29 October 2015, 02:57 AM ET
Around the Galaxy Messier 94 a starburst ring is at work birthing new stars into the Universe.
28 October 2015, 04:27 PM ET
In a surprise finding for scientists, the Rosetta spacecraft detected molecular oxygen in the gas streaming off comet 67P/Churyumov-Gerasimenko.
28 October 2015, 01:50 PM ET
Cassini flew low through the Saturn moon Enceladus' icy plume today (Oct. 28) at 11:22 a.m. EDT (1522 GMT), zooming within a mere 30 miles (50 kilometers) of the satellite's frigid surface.
28 October 2015, 12:26 PM ET
Using planetary orbits, physicists have pinned down just how precisely right Einstein was: Any deviations from his theory of general relativity are so small they would change calculations by just one part in 10,000 to one part in 100,000.
28 October 2015, 11:15 AM ET
As a big asteroid flies by at a close but safe distance from Earth on Friday (Oct. 31), astronomers will likely get a better radar view of the surface than ever before. Here's what we know.
28 October 2015, 09:48 AM ET
Space rock 2015 TB145 is the size of a skyscraper at an estimated 1300 feet long (~400m) and will zoom past Earth on Oct. 31st, 2015 at a distance of roughly 300,000 miles.
28 October 2015, 07:28 AM ET
Astronomers around the world are keeping a close eye on a mysteriously dimming star, and their observations could soon shed light on whether it is indeed surrounded by some sort of "alien megastructure."
28 October 2015, 07:00 AM ET
Sifting datasets from the VISTA Telescope survey have detected 35 very young stars hiding in the thick dust of our galaxy’s "central bulge." This area has long been regarded as an old age home of Milky Way stars.  
28 October 2015, 07:00 AM ET
A previously unknown disk of very young stars has been discovered near the the peanut-shaped bulge at the center of the Milky Way. Scientists found the youngsers with thehelp of Cepheids — stars the change in brightness over days or months.
27 October 2015, 03:46 PM ET
A star is dimming for reasons that astronomers can't explain. Is it an alien megastructure? What sort of alien megastructures would be possible?
27 October 2015, 03:30 PM ET
According to observations by Hubble and Kepler, the universe has only just begun to produce habitable worlds — what does this mean for the evolution of intelligent life?
27 October 2015, 11:15 AM ET
Will conscious computers conquer the cosmos?
27 October 2015, 08:00 AM ET
The object, which is known as WT1190F, is expected to enter Earth's atmosphere on Nov. 13 above the Indian Ocean, about 62 miles (100 kilometers) south of Sri Lanka. The impending impact poses little risk to people, experts say.
27 October 2015, 08:00 AM ET
Pluto’s haze layer displays a blue color in this image obtained by the New Horizons spacecraft's Ralph/Multispectral Visible Imaging Camera (MVIC). Image released Oct. 8, 2015.
26 October 2015, 05:57 PM ET
The Eagle Nebula and the Star Queen nebula can be seen in this annotated view.
26 October 2015, 05:56 PM ET
On Wednesday (Oct. 28), NASA's Cassini spacecraft will zoom just 30 miles (50 kilometers) above Enceladus' surface, flying through and sampling the plume of material that erupts from the satellite's south polar region.
26 October 2015, 05:31 PM ET
On Oct. 28th, 2015, NASA's Cassini spacecraft will zoom past in excess of 19,000 mph, sampling the water plume emanating from its south pole. The instrumentation will be looking for signs of habitability on the icy world.
26 October 2015, 08:00 AM ET
The monster back hole at the center of the Milky Way belched out an exceptionally high number of powerful X-ray flares in August 2014 — did the beast chow down on a passing gas cloud, or is this typical for black holes?
26 October 2015, 08:00 AM ET
Newly received photos captured by NASA's New Horizons spacecraft reveal that Pluto's tiny moon Kerberos is smaller and brighter than researchers had expected.
26 October 2015, 08:00 AM ET
With the help of a natural telescope, Hubble peered back in time to some of the earliest galaxies, many of which played a significant role in making the universe what it is today.
25 October 2015, 01:16 PM ET
Scott Kelly set a new record for American spaceflight, and scientists are searching for signs of an alien civilization around a distant star. Here are's top stories of the week.
25 October 2015, 12:42 PM ET
From stunning Earth's horizon as seen from the ISS to a glittering Milky Way, don't miss these amazing space images.
24 October 2015, 04:32 PM ET
Dione, one of Saturn's larger moons, orbits across the face of the planet with Saturn's unilluminated rings crossing the planet's middle.
23 October 2015, 05:45 PM ET
The planet-destroying Death Star from "Star Wars" may be fictional, but a star at the end of its life and only a bit bigger than Earth could be its real-world twin: the star is currently destroying and disintegrating an orbiting planet bit by bit.
23 October 2015, 03:36 PM ET
New Horizons, which in July performed the first-ever flyby of Pluto, fired up its engines yesterday (Oct. 22) in the first of four maneuvers designed to send the probe zooming past a small object called 2014 MU69 on Jan. 1, 2019.
23 October 2015, 03:10 PM ET
Astronomers detected 21 different complex organic molecules streaming from Comet Lovejoy during its highly anticipated close approach to the sun this past January. Many of these same compounds have also been spotted around newly forming stars.
23 October 2015, 11:36 AM ET
The object, called WT1190F, was observed using the University of Hawaii 2.2-metre telescope on Oct. 9th, 2015. It is thought to be a spent upper stage rocket body.
23 October 2015, 07:01 AM ET
The second season of "StarTalk," the science-themed talk show hosted by astrophysicist Neil deGrasse Tyson, premiers this Sunday (Oct. 25) at 11 p.m. EDT on National Geographic Channel. The show's first guest will be President Bill Clinton.
23 October 2015, 07:00 AM ET
The United States Geological Survey (USGS) recently posted online two moon maps — a photo mosaic and a topographic map — that were constructed using images and data captured by NASA's long-running Lunar Reconnaissance Orbiter (LRO) spacecraft.
23 October 2015, 12:43 AM ET
This visualization of data from ESA's Planck satellite, reminiscent of the soft tones and delicate quality of an artist's painted masterpiece, presents a view of interstellar dust interacting with the structure of our Galaxy's magnetic field.
22 October 2015, 05:00 PM ET
The big asteroid 2015 TB145, which will cruise within 300,000 miles (480,000 kilometers) of Earth on Halloween (Oct. 31), may actually be a comet, NASA researchers say.
22 October 2015, 12:05 PM ET
The strange shape of Comet 67P/Churyumov-Gerasimenko, which the European Space Agency's Rosetta spacecraft has been studying for more than a year, arose from the long-ago collision of two separate, slow-moving comets, researchers say.