%20--%3e%3csvg%20width='512'%20height='512'%20viewBox='0%200%20135.46666%20135.46667'%20version='1.1'%20id='svg185'%20sodipodi:docname='wserie.svg'%20inkscape:version='1.2.2%20(b0a8486541,%202022-12-01)'%20inkscape:export-filename='../../public/wserie.png'%20inkscape:export-xdpi='96'%20inkscape:export-ydpi='96'%20xmlns:inkscape='http://www.inkscape.org/namespaces/inkscape'%20xmlns:sodipodi='http://sodipodi.sourceforge.net/DTD/sodipodi-0.dtd'%20xmlns:xlink='http://www.w3.org/1999/xlink'%20xmlns='http://www.w3.org/2000/svg'%20xmlns:svg='http://www.w3.org/2000/svg'%3e%3csodipodi:namedview%20id='namedview187'%20pagecolor='%23ffffff'%20bordercolor='%23666666'%20borderopacity='1.0'%20inkscape:showpageshadow='2'%20inkscape:pageopacity='0.0'%20inkscape:pagecheckerboard='0'%20inkscape:deskcolor='%23d1d1d1'%20inkscape:document-units='mm'%20showgrid='false'%20inkscape:zoom='0.75187991'%20inkscape:cx='-219.44994'%20inkscape:cy='212.79994'%20inkscape:window-width='1920'%20inkscape:window-height='1029'%20inkscape:window-x='0'%20inkscape:window-y='27'%20inkscape:window-maximized='1'%20inkscape:current-layer='layer1'%20/%3e%3cdefs%20id='defs182'%3e%3cradialGradient%20inkscape:collect='always'%20xlink:href='%23linearGradient1249'%20id='radialGradient1251'%20cx='254'%20cy='95.249992'%20fx='254'%20fy='95.249992'%20r='67.65345'%20gradientUnits='userSpaceOnUse'%20/%3e%3clinearGradient%20inkscape:collect='always'%20id='linearGradient1249'%3e%3cstop%20style='stop-color:%2334b86b;stop-opacity:1;'%20offset='0'%20id='stop1245'%20/%3e%3cstop%20style='stop-color:%23206f43;stop-opacity:1;'%20offset='1'%20id='stop1247'%20/%3e%3c/linearGradient%3e%3clinearGradient%20inkscape:collect='always'%20xlink:href='%23linearGradient1271'%20id='linearGradient1273'%20x1='225.37227'%20y1='95.249992'%20x2='297.42328'%20y2='95.249992'%20gradientUnits='userSpaceOnUse'%20/%3e%3clinearGradient%20inkscape:collect='always'%20id='linearGradient1271'%3e%3cstop%20style='stop-color:%23ffffff;stop-opacity:1;'%20offset='0'%20id='stop1267'%20/%3e%3cstop%20style='stop-color:%23adadad;stop-opacity:1;'%20offset='1'%20id='stop1269'%20/%3e%3c/linearGradient%3e%3c/defs%3e%3cg%20inkscape:label='Layer%201'%20inkscape:groupmode='layer'%20id='layer1'%3e%3cg%20id='g1293'%20transform='translate(-186.26667,-27.516659)'%3e%3ccircle%20style='fill:url(%23radialGradient1251);fill-opacity:1;stroke:none;stroke-width:0.159763px;paint-order:fill%20markers%20stroke;stop-color:%23000000'%20id='path358'%20cx='254'%20cy='95.249992'%20r='67.65345'%20/%3e%3cpath%20id='path1748'%20style='fill:url(%23linearGradient1273);fill-opacity:1;stroke:none;stroke-width:0.127407px;paint-order:fill%20markers%20stroke;stop-color:%23000000'%20inkscape:transform-center-x='-12.008464'%20d='m%20225.37227,45.1744%20v%2032.19152%202.85227%20l%2031.87352,15.0318%20-31.87352,15.03181%20v%202.85226%2032.19153%20l%2072.05101,-33.97984%20-34.12905,-16.09576%2034.12905,-16.09576%20z'%20/%3e%3c/g%3e%3c/g%3e%3c/svg%3e){kind=small}
The Earth Next Door
NASA's Unexplained Files - S4 - E4
Astronomers detect a potentially habitable planet tantalizingly close to Earth. A chance discovery at NASA reveals a top secret military space program. The Apollo missions bring back evidence that the moon may be rich in the building blocks for life.
NASA's Unexplained Files: Season 4 - 8 Episode s
4x1 - Pluto's Stranger Things
August 30, 2016
Astronomers find evidence for incredible alien technology around a distant star. The first pictures of Pluto may show something moving across its surface. Apollo astronauts see something they can't explain as they approach the Moon.
4x2 - Rise of the Planet Killer
September 6, 2016
A probe captures an image of a strange structure on Mars. Files from the first Apollo mission record an eerie sighting on the dark side of the Moon. A planet-eating star gives scientists a glimpse of Earth's terrible demise.
4x3 - A President's Close Encounter
September 13, 2016
Geysers are discovered on a frozen moon, and NASA redirects a probe on a daring mission to detect evidence of life. An unidentified object is spotted approaching a near-earth asteroid. A future president is an eyewitness to a UFO.
4x4 - The Earth Next Door
September 20, 2016
Astronomers detect a potentially habitable planet tantalizingly close to Earth. A chance discovery at NASA reveals a top secret military space program. The Apollo missions bring back evidence that the moon may be rich in the building blocks for life.
4x5 - Curse of the Full Moon
September 27, 2016
Two cosmonauts fight for their lives while trapped inside a capsule in a frozen lake. A NASA scientist investigates the deadly Nazi secret that doomed the Hindenburg. NASA astronomers are spooked when the full moon starts affecting their experiments.
4x6 - Did Earth Have Two Moons?
October 4, 2016
A discovery suggests the hellish clouds of Venus may be the origin of life on Earth. A bizarre sighting 2,000 years ago raises the possibility that Earth once had two moons. A scientist helps the FBI crack the 1996 Olympic bombing.
4x7 - Mystery of the Invisible Planet
October 11, 2016
A probe carrying a message to aliens malfunctions as it enters deep space. A NASA mission goes disastrously wrong when an imposter breaches Mission Control. Astronomers may have found an invisible planet around a distant star.
4x8 - Mars's Deepest Secret
October 18, 2016
British astronomers working for the CIA intercept Soviet photos of the moon. A malfunction on the ISS could poison its crew with ammonia gas. A startling image taken by a NASA probe points to evidence that life could exist on Mars.