This video of the sun based on data from NASA’s Solar Dynamics Observatory, or SDO, shows the wide range of wavelengths — invisible to the naked eye — that…
This video is beautiful. You can actually see almost every detail of the sun beyond its light. Amazing!
Soaring Over Titan: Extraterrestrial Land of Lakes
This colorized movie from NASA’s Cassini mission takes viewers over the largest seas and lakes on Saturn’s moon Titan. The movie is made from radar data received during multiple flyovers of Titan from 2004 to 2013.
Credit: NASA Jet Propulsion Laboratory
From intergalactic neutrinos and invisible brains, to the creation of miniature human “organoids”, 2013 was an remarkable year for scientific discovery. Here are some of the biggest scientific breakthroughs, innovations and advances of 2013.
Voyager I Leaves the Solar System
Escaping the solar system is no mean feat. For 36 years, NASA’s Voyager 1 spacecraft has putting distance between itself and the Sun at speeds approaching 11 miles per second. At a pace like that, scientists knew Voyager was approaching the fringes of the heliosphere that surrounds and defines our solar neighborhood – but when would it break that barrier? When would it make the leap to interstellar space? After months of uncertainty, NASA finally made the news official this September. "Voyager 1 is the first human-made object to make it into interstellar space" said Don Gurnett, lead author of the paper announcing Voyager’s departure; “we’re actually out there.”
The Milky Way is Brimming with Habitable Worlds
Planet-hunting scientists announced in November that 22% of sunlike stars in the Milky Way are orbited by potentially habitable, Earth-size worlds. This remarkable finding suggests there could be as many as two-billion planets in our galaxy suitable for life — and that the nearest such planet may be only 12 light-years away. Is Earth 2.0 out there? With figures like that, it’s hard to imagine otherwise. Who knows – with all the Kepler data we’ve got to sift through, there’s a chance we’ve already found it.
Curiosity Confirms Mars Was Once Capable of Harboring Life
In March, NASA scientists released perhaps the most compelling evidence to date that the Red Planet was once capable of harboring life. Earlier this year, Curiosity drilled some samples out of a sedimentary rock near an old river bed in Gale Crater. This geological area used to feature a series of stream channels, leaving behind finely grained bedrock indicative of previously wet conditions. Using the rover’s onboard instrumentation, NASA scientists analyzed these samples to detect some of the critical elements required for life, including sulfur, nitrogen, hydrogen, oxygen, phosphorus, and carbon. The rover is currently on a trek to its primary scientific target – a three-mile-high peak at the center of Gale Crater named Mount Sharp – where it will attempt to further reinforce its findings.
Researchers Detect Neutrinos from Another Galaxy
By drilling a 1.5 mile hole deep into an Antarctic glacier, physicists working at the IceCube South Pole Observatory this year captured 28 neutrinos, those mysterious and extremely powerful subatomic particles that can pass straight through solid matter. And here’s the real kicker: the particles likely originated from beyond our solar system – and possibly even our galaxy. ”This is a landmark discovery,” said Alexander Kusenko, a UCLA astroparticle physicist who was not involved in the investigation, “possibly a Nobel Prize in the making.”
NASA Discovers “A Previously Unknown Surprise Circling Earth”
NASA’s recently deployed Van Allen probes — a pair of robotic spacecraft launched in August 2012 to investigate Earth’s eponymous pair of radiation belts — turned out out some very unexpected findings in February, when they spotted an ephemeral third ring of radiation, previously unknown to science, surrounding our planet.
Human Cloning Becomes a Reality
A scientific milestone 17 years in the making, researchers announced in May that they had derived stem cells from cloned human embryos.The controversial technology could lead to new treatments for diseases like Parkinson’s and diabetes — while bringing us one step closer to human reproductive cloning.
Giant “Pandoravirus” Could Redefine Life as we Know it
Scientists in July announced the discovery of a pair of viruses that defy classification. Bigger and more genetically complex than any viral genus known to science, these so-called “pandoraviruses” could reignite a longstanding debate over the classification of life itself.
Brain-to-Brain Interfaces Have Arrived
Back in February, researchers announced that they had successfully established an electronic link between the brains of two rats, and demonstrated that signals from the mind of one could help the second solve basic puzzles in real time — even when those animals were separated by thousands of miles. A few months later, a similar connection was established between the brain of a human and a rat. Just one month later, researchers published the results of the first successful human-to-human brain interface. The age of the mind-meld, it seems, is near at hand.
There is Life at the End of the World
There is life in Lake Whillans. For millions of years, the small body of liquid water has lurked hundreds of meters below Antarctica’s Ross Ice Shelf, sealed off from the outside world and the scientists who would explore its subglacial depths. Earlier this year, a team of researchers led by Montana State University glaciologist John Priscu successfully bored a tunnel to Whillans and encountered life, making Priscu and his colleagues the first people in history to discover living organisms in the alien lakes at the bottom of the world.
Doctors Cure HIV in a Baby Born With the Disease
In a monumental first for medicine, doctors announced in March that a baby had been cured of an HIV infection. Dr. Deborah Persaud, who presented the child’s case at the 20th annual Conference on Retroviruses and Opportunistic Infection, called it “definitely a game-changer.”
Newly Discovered Skulls Could Prune Humans’ Evolutionary Tree
An incredibly well-preserved, 1.8-million-year-old skull from Dmanisi, Georgia suggests the evolutionary tree of the genus Homo may have fewer branches than previously believed. In a report published in October, a team led by Georgian anthropologist David Lordkipanidze writes that it is “the world’s first completely preserved hominid skull.” And what a skull it is. When considered alongside four other skulls discovered nearby, it suggests that the earliest known members of the Homo genus (H. habilis, H.rudolfensis and H. erectus) may not have been distinct, coexisting species, at all. Instead, they may have been part of a single, evolving lineage that eventually gave rise to modern humans.
Neuroscientists Turn Brains Invisible
Gaze upon the stunning effects of CLARITY, a new technique that enables scientists to turn brain matter and other tissues completely transparent. It’s been hailed as one of the most important advances for neuroanatomy in decades, and it’s not hard to see why.
It’s that time of year again! Check out these incredible images of snowflakes under a microscope by Alexey Kljatov.
NASA | Earthrise: The 45th Anniversary
Look at the bright star in the middle of this image. It appears as if it just sneezed. This sight will only last for a few thousand years — a blink of an eye in the young star’s life.
If you could carry on watching for a few years you would realize it’s not just one sneeze, but a sneezing fit. This young star is firing off rapid releases of super-hot, super-fast gas, like multiple sneezes, before it finally exhausts itself. These bursts of gas have shaped the turbulent surroundings, creating structures known as Herbig-Haro objects.
These objects are formed from the star’s energetic “sneezes.” Launched due to magnetic fields around the forming star, these energetic releases can contain as much mass as our home planet, and cannon into nearby clouds of gas at hundreds of kilometers/miles per second. Shock waves form, such as the U-shape below this star. Unlike most other astronomical phenomena, as the waves crash outwards, they can be seen moving across human timescales of years. Soon, this star will stop sneezing, and mature to become a star like our sun.
This region is actually home to several interesting objects. The star at the center of the frame is a variable star named V633 Cassiopeiae, with Herbig-Haro objects HH 161 and HH 164 forming parts of the horseshoe-shaped loop emanating from it. The slightly shrouded star just to the left is known as V376 Cassiopeiae, another variable star that has succumbed to its neighbor’s infectious sneezing fits; this star is also sneezing, creating yet another Herbig-Haro object — HH 162. Both stars are very young and are still surrounded by dusty material left over from their formation, which spans the gap between the two.
Credit: ESA/Hubble & NASA, Acknowledgement: Gilles Chapdelaine
One of the strongest motives that lead men to art and science is escape from everyday life with its painful crudity and hopeless dreariness, from the fetters of one’s own ever-shifting desires. A finely tempered nature longs to escape from the personal life into the world of objective perception and thought.
—Albert Einstein (via utcjonesobservatory)