Science & Astronomy Archive
16 October 2015, 07:30 AM ET
NASA's Cassini spacecraft zoomed within 1,142 miles (1,838 kilometers) of Enceladus' surface Wednesday (Oct. 14), capturing its best-ever looks at the north polar region of the ocean-harboring moon.
16 October 2015, 12:40 AM ET
There are thousands of NASA images you've never seen before — here are a few.
15 October 2015, 05:30 PM ET
The sun has sprung a leak: A hole in the topmost layer of the sun and its magnetic field, the size of 50 Earths, is letting loose an ultrafast solar wind that has kicked off several nights of auroras down on Earth.
15 October 2015, 02:02 PM ET
Comet Siding Spring's close shave by Mars last year provided a rare glimpse into how Oort Cloud comets behave, according to new research.
15 October 2015, 02:01 PM ET
Making sense of Pluto's giant ice mountains, geologically young ice plains and other intriguing characteristics is going to take some time, scientists say.
15 October 2015, 01:29 PM ET
Exotic particles such as dark matter could allow the formation of tunnels that cut through space-time. These so-called wormholes could be used to travel not only across the universe but also through time.
15 October 2015, 12:13 PM ET
NASA's Kepler space telescope has detected something weird orbiting a nearby star — is it evidence of an alien civilization? Or is it just a clump of comets?
15 October 2015, 07:51 AM ET
"The Martian" captures the humor and culture of real scientists, breaks stereotypes and avoids two of the most common missteps of space-related cinema.
15 October 2015, 07:45 AM ET
Astronomer Geoff Marcy has resigned from the University of California, Berkeley after community outcry over an investigation that found he had violated campus sexual harassment policies.
15 October 2015, 07:00 AM ET
Astronomers have developed some clever methods of detecting tiny planets orbiting distant stars.
15 October 2015, 07:00 AM ET
On Oct. 6, 1995, Michel Mayor and Didier Queloz of Switzerland's Geneva Observatory announced the discovery of 51 Pegasi b, the first alien planet ever found around a sunlike star.
14 October 2015, 03:45 PM ET
It's a virtual certainty that comets have delivered the building blocks of life to Europa's hidden ocean, according to a new study.
14 October 2015, 03:43 PM ET
The enormous, inky smudges of the Coalsack nebula blot out a patch of the brilliant Milky Way in a new image from the European Southern Observatory — but someday, that murky realm will burst into light.
14 October 2015, 03:13 PM ET
The new OPAL program allowed the Hubble Space Telescope to capture breathtaking images of Jupiter, revealing the slowdown in the shrinkage of its Great Red Spot and a rare feature that hasn't been spotted for decades.
14 October 2015, 01:14 PM ET
Jupiter's Great Red Spot — the most powerful storm in the solar system — is at its smallest observed size yet, and scientists aren't sure why.
14 October 2015, 01:13 PM ET
NASA's Cassini spacecraft has spent a decade studying Saturn and its family of moons. With the mission set to end in 2017, the probe has been busy gathering as much data as possible. But starting today (Oct. 14), Cassini begins to wrap up its time at Satu
14 October 2015, 11:48 AM ET
14 October 2015, 07:30 AM ET
The most jaw-dropping photos captured by NASA's New Horizons spacecraft during its July Pluto flyby depict the dwarf planet or its largest moon, Charon. But newly released images suggest that Pluto's four tiny moons are plenty interesting, too.
14 October 2015, 07:30 AM ET
A once-bright cloud of electrons is being shocked back to life by a collision between two galaxy clusters.
13 October 2015, 05:54 PM ET
13 October 2015, 05:04 PM ET
13 October 2015, 04:51 PM ET
The shape of pebbles photographed by NASA's Mars rover Curiosity suggests these rocks rolled along in streams for dozens of miles billions of years ago.
13 October 2015, 11:30 AM ET
Geoff Marcy, a leader in the field of exoplanet science, has been found to have violated the University of California, Berkeley's sexual harassment policy, leading to a public discussion about harassment in astronomy and academia.
13 October 2015, 07:45 AM ET
A newly released photo provides a great look at Mars' seldom-seen South Pole. The swirling white dot toward the bottom of the photo, which was taken by the European Space Agency's Mars Express spacecraft, is the Red Planet’s south polar ice cap.
13 October 2015, 07:45 AM ET
Researchers have created the first ultrathin, flat lens able to focus light just as well as its curved counterparts. The new tech could allow more-compact and robust cameras and microscopes to be built.
13 October 2015, 07:33 AM ET
Researchers have created a "habitability index" that allows them to rank alien worlds in terms of their life-hosting potential. The metric could help guide the operations of future observatories that will scan exoplanet atmospheres for signs of life.
12 October 2015, 03:43 PM ET
Students participated in a digital learning network at Kennedy Space Center with NASA scientists, astronauts and cast members from the film "The Martian."
12 October 2015, 08:00 AM ET
All stars, from young proto-stars to supermassive black holes flicker. That flickering light can be translated into audio waves. Simone Scaringi created sound files that mimics what star accretion might sound like.
12 October 2015, 08:00 AM ET
Just as the moon's gravitational pull causes seas and lakes to rise and fall as tides on Earth, the Earth exerts tidal forces on the moon. Scientists have known this for a while, but now they've found that Earth's pull actually opens up faults on the moon
12 October 2015, 08:00 AM ET
Researchers transformed flickering in the light emissions of galactic nuclei, black holes, superdense white dwarfs and other objects into sound waves. The result? A lot of white noise.
09 October 2015, 04:57 PM ET
Is time travel possible? Are the past and future set or can they be changed? Sci-fi books and films have long explored these ideas.
09 October 2015, 10:21 AM ET
NASA says the orbiter it aims to launch in the 2020s could carry the mechanisms needed to collect and store surface samples for a return trip to Earth.