VSauce blows my mind. I love it. 🙂
By Jo Rodriguez via Listverse
Is there life elsewhere in the universe? It’s becoming increasingly likely that life must exist somewhere out there, but theories on aliens closer to home have ranged from misguided to idiotic.
10 • Viking Landers Finding Life On Mars
During the ’70s, NASA’s Viking landers probed Martian soil, eagerly looking for signs of life on the Red Planet. While the landers did not find actual microorganisms, traces of carbon dioxide turned up in the collected samples. Some scientists looked at the results and concluded that living organisms had to be on the planet, producing the compound.
The findings have been disputed for decades. Recently, some scientists have concluded that iron particles in Martian soil could have oxidized carbon compounds that exist naturally there.
Though evidence from Viking may not point to current Martians, carbon in the soil may still indicate that life once existed on the planet. Today’s research focuses less on finding living organisms there and more on investigating if the atmosphere could preserve traces of life even after long stretches of time.
9 • Arthur C. Clarke And Martian Vegetation
Beloved author and screenwriter Arthur C. Clarke long believed in life on Mars. In 2001, Clarke downloaded several photos from NASA’s website captured by the Mars Global Surveyor and was delighted to see what he thought were trees.
Clarke spoke to a crowd in his home in Sri Lanka, saying that the pictures showed things that were growing on the planet’s surface. Clarke said, “I’m quite serious when I say I have a really good look at these new Mars images. Something is actually moving and changing with the seasons that suggest, at least, vegetation.” In another interview, he joked, “I’m now convinced that Mars is inhabited by a race of demented landscape gardeners.”
The images were actually simply sand dunes, covered in or affected by frozen carbon dioxide. Over time, dark sand cascades down the dunes, leaving streaks that may look like trees to the less educated eye.
8 • Crazy Experiments To Contact Martians
In 1820, German mathematician Carl Friedrich Gauss sought to incorporate the work of Pythagoras in his quest to communicate with alien life on Mars. Gauss suggested clearing a large patch of Siberia and planting wheat for miles in a shape that geometrically illustrates the Pythagorean Theorem. By harvest season, the bright yellow crop-filled areas would contrast with the forest’s darker coloring. Gauss believed that Martian observers could spot this gigantic triangle on Earth with a small telescope.
Other odd ideas were also popular during the 19th century. Astronomer Joseph Littrow suggested digging trenches measuring 30 kilometers (20 mi) in length and shaped in various geometric patterns across the Sahara. We’d then fill them with kerosene and light them up. A Frenchman, Charles Cros, suggested building a huge mirror that could focus sunlight and burn messages into the very surface of Mars.
7 • Martians Contact Nikola Tesla
Nikola Tesla may have been one of the most brilliant scientists in human history, but he also falsely claimed to have received artificial signals of extraterrestrial origin—he said they were from Mars or Venus.
In a letter to the New York Times, Tesla wrote of how Mars, of the two planets, could support life. He viewed the distance of the planets from the Sun in terms of evolution. Venus was at a youthful stage, perhaps unable to fully sustain humanoid life. Earth was at full growth. Mars had reached old age, yet it had passed through prime biological and technological evolutionary stages.
Tesla suggested ways to improve our means to communicate with Mars, first by relocating our observatories to send clearer signals through the atmosphere. In 1937, Tesla’s work led him to believe that he could win the Pierre Guzman Prize of 100,000 francs for “the first person who will find the means of communicating with a star and of receiving a response.” The prize rules excluded contact with Mars, however, because that would have been “too easy.”
The public has never had a chance to analyze Tesla’s supposed observation, but it is likely that he actually detected the pulsing of distant stars. This was far from the intelligent transmission he had claimed to see, but it was still an impressive accomplishment.
By Nadia Drake via National Geographic
Recent photos taken by NASA’s Mars rover might appear to show a gleaming alien bonfire burning in the distance—at least according to some Internet loonies—but that’s not exactly what’s happening.
Fact is, there still isn’t any evidence for life on Mars. None.
The provocative, shiny smears of light appear in two images snapped by rover Curiosity’s navigation camera, one on April 2 and the other on April 3, provoking excitement among some in the UFO-spotting crowd.
The photos come courtesy of the camera’s right eye and show nearly vertical bright smudges emerging from a spot near the horizon. Photos of the same spot shot by the camera’s left eye, meanwhile, show no such things.
Rather than emanating from an underground Martian disco, the bright spots are probably caused by cosmic rays colliding with the rover’s camera or by glinting rocks reflecting the Martian sunlight, said NASA’s Jet Propulsion Laboratory’s Justin Maki, lead imaging scientist for the Curiosity team.
He said that glimmers appearing in similar spots on two consecutive days are oddly coincidental.
It turns out that both cosmic rays and glinting rocks are pretty common on Mars. They’ve been spotted before. Such rocks have been seen in images sent by several of NASA’s Mars rovers, and cosmic rays appear in images that Curiosity sends to Earth each week.
Maki said that one percent of those hundreds of weekly images might include cosmic ray-induced bright spots. But the junked-up pixels normally don’t cause much of a stir.
“You’ll see cosmic rays every two or three days. Certainly at least once a week,” Maki said. “The reason we see so many is because Mars’s atmosphere is thinner: It doesn’t block as much cosmic radiation as Earth’s does.”
Cosmic rays are charged particles that fly through the universe in every direction all the time. Every so often they’ll collide with something like a camera. One sign of a cosmic ray hit, Maki said, is the appearance of the ray in images taken by one of Curiosity’s eyes but not the other.
Glinting rocks, on the other hand, could easily reflect Martian sunlight.