Visit Blog
Explore Tumblr blogs with no restrictions, modern design and the best experience.
#nasa
mysharona1987 · 16 hours ago
Text
Tumblr media
1K notes · View notes
nasa · 2 days ago
Text
Lasers Bring Internet Speeds to Space
Pew. Pew. Lasers in space!
Iconic movie franchises like Star Wars and Star Trek feature futuristic laser technologies, but space lasers aren’t limited to the realm of science fiction. In fact, laser communications technologies are changing the way missions transmit their data. The Laser Communications Relay Demonstration (LCRD) blasts into space this weekend, demonstrating the unique – and totally awesome – capabilities of laser communications systems.
Tumblr media
Currently, NASA missions rely on radio frequency to send data to Earth. While radio has served the agency well since the earliest days of spaceflight, there are significant benefits to laser systems. Just as the internet has gone from dial-up to high-speed connections, lasers communications’ higher frequency allows missions to send much more information per second than radio systems. With laser communications, it would only take nine days to transmit a complete map of Mars back to Earth, compared to nine weeks with radio frequency systems.
Tumblr media
LCRD will demonstrate these enhanced capabilities from 22,000 miles above Earth’s surface. And although the mission uses lasers, these lasers are not visible to the human eye. Once in orbit, the mission will perform experiments using two telescopes on Earth that will relay data through the spacecraft from one site to the other over an optical communications link. These experiments will help NASA and the aerospace community understand the operational challenges of using lasers to communicate to and from space.
Tumblr media
On Earth, there are ground stations telescopes that will capture LCRD’s laser signal and send the data to the mission operations center in New Mexico. The two ground stations are located on Haleakalā, Hawaii and Table Mountain, California. These picturesque locations weren’t chosen because they’re beautiful, but rather for their mostly clear skies. Clouds – and other atmospheric disturbances – can disrupt laser signals. However, when those locations do get cloudy, we’ve developed corrective technologies to ensure we receive and successfully decode signals from LCRD.
Tumblr media
This demonstration will help NASA, researchers, and space companies learn more about potential future applications for laser communications technologies. In the next few years, NASA will launch additional laser missions to the Moon on Artemis II and to the asteroid belt, even deeper into space. These missions will give us insight on the use of laser communications further in space than ever before.
Tumblr media
Ultimately, laser systems will allow us to glean more information from space. This means more galaxy pics, videos of deep space phenomena, and live, 4K videos from astronauts living and working in space.
Laser communications = more data in less time = more discoveries.
If laser communications interests you, check out our Space Communications and Navigation (SCaN) Internship Project. This program provides high school, undergrad, graduate, and even Ph.D. candidates with internship opportunities in space communications areas – like laser comm.
Make sure to follow us on Tumblr for your regular dose of space!
547 notes · View notes
spacewonder19 · 2 days ago
Photo
Tumblr media
Tumblr media
Tumblr media
Comet Leonard near Whale Galaxy & Messier 3 
📸Gregg Ruppel/Michael Jäger/Con Stoitsis
557 notes · View notes
just--space · 16 hours ago
Photo
Tumblr media
Sun Pillar with Upper Tangent Arc : This was not a typical sun pillar. Just after sunrise two weeks ago in Providence, Rhode Island, USA, a photographer, looking out his window, was suddenly awestruck. The astonishment was caused by a sun pillar that fanned out at the top. Sun pillars, singular columns of light going up from the Sun, are themselves rare to see, and are known to be caused by sunlight reflecting from wobbling, hexagon-shaped ice-disks falling through Earth's atmosphere. Separately, upper tangent arcs are known to be caused by sunlight refracting through falling hexagon-shaped ice-tubes. Finding a sun pillar connected to an upper tangent arc is extraordinary, and, initially, took some analysis to figure out what was going on. A leading theory is that this sun pillar was also created, in a complex and unusual way, by falling ice tubes. Few might believe that such a rare phenomenon was seen again if it wasn't for the quick thinking of the photographer -- and the camera on his nearby smartphone. via NASA
544 notes · View notes
pixalry · a day ago
Photo
Tumblr media
Tumblr media
Tumblr media
Tumblr media
Tumblr media
Space Shuttle Art Prints - Created by Kevin Dart
Limited edition prints available for sale at Gallery Nucleus. You can follow the artist on Twitter.
551 notes · View notes
without-ado · a day ago
Text
Tumblr media
soon after moonrise l Virginia Beach Oceanfront, U.S. l Rami Ammoun
The reddish orange color of the Moon is due to the ongoing wildfires that's occurring in the west, mainly in Nevada (July 2021).
497 notes · View notes
wonders-of-the-cosmos · 2 days ago
Text
Tumblr media
Hubble’s Observation of Jupiter in 2021
Credit: NASA, ESA, A. Simon (Goddard Space Flight Center), and M.H. Wong (University of California, Berkeley) and the OPAL team
445 notes · View notes
nevver · 2 days ago
Photo
Tumblr media
Moonlighting
236 notes · View notes
capturingthecosmos · 8 hours ago
Photo
Tumblr media
Space Station Silhouette on the Moon via NASA https://ift.tt/3prSMXn
81 notes · View notes
thespace-alien · 8 hours ago
Photo
Tumblr media
"Space Station Silhouette on the Moon " Is the NASA Astronomy Picture of the Day of today, December 06, 2021
67 notes · View notes
just--space · a day ago
Photo
Tumblr media
Perseverance: Seven Minutes to Mars : How hard is it to land safely on Mars? So hard that many more attempts have failed than succeeded. The next attempt will be on Thursday. The main problem is that the Martian atmosphere is too thick to ignore -- or it will melt your spacecraft. On the other hand, the atmosphere is too thin to rely on parachutes -- or your spacecraft will crash land. Therefore, as outlined in the featured video, the Perseverance lander will lose much of its high speed by deploying a huge parachute, but then switch to rockets, and finally, assuming everything goes right, culminate with a hovering Sky Crane that will slowly lower the car-sized Perseverance rover to the surface with ropes. It may sound crazy, but the Curiosity rover was placed on Mars using a similar method in 2012. From atmospheric entry to surface touch-down takes about seven minutes, all coordinated by an onboard computer because Mars is too far away for rapid interactive communication. During this time, humans on Earth will simply wait to hear if the landing was successful. Last week, UAE's Hope spacecraft successfully began orbiting Mars, followed a day later by the Chinese Tianwen-1 mission, which will likely schedule a landing of its own rover sometime in the next few months. via NASA
140 notes · View notes
coolnasapics · 8 hours ago
Photo
Tumblr media
Space Station Silhouette on the Moon via NASA https://ift.tt/3prSMXn
56 notes · View notes
without-ado · 2 days ago
Text
Tumblr media
Comet C/2021 A1 Leonard & Star cluster M3 l Mt. Blue Ridge, U.S. l mrjackdog
111 notes · View notes