Wednesday, December 7, 2016
Contact us    |    Advertise    |   Help   RSS icon Twitter icon Facebook icon
    Home  ·  News  ·  Forum  ·  Stories  ·  Image Gallery  ·  Columns  ·  Encyclopedia  ·  Videos
Find: in

New moon discovered around Neptune


Posted on Friday, 19 July, 2013 | Comment icon 22 comments | News tip by: Waspie_Dwarf


Image credit: NASA

 
Archive images taken by the Hubble Space Telescope have revealed a previously undiscovered moon.

The enigmatic object known as 'S/2004 N1' is the first new moon to be found around Neptune in over ten years. It was discovered by SETI's Mark Showalter who had been examining archive photographs of Neptune to study segments of its rings. The technique involved stacking together multiple short exposure images to help see the rings in more detail.

"I got nice pictures of the arcs, which was my main purpose, but I also got this little extra dot that I was not expecting to see," he said. The new moon is particularly perplexing because it is so small that it is incredible that it managed to survive the formation of Neptune's other moons. "The Neptune moons we see today were probably broken up and regenerated after the arrival of Triton," Showalter added.

"Neptune has a new moon, and its existence is an enigma."

  View: Full article |  Source: New Scientist

  Discuss: View comments (22)

   


 
Recent comments on this story
Comment icon #13 Posted by Waspie_Dwarf on 19 July, 2013, 21:01
I got this in an email today. Not pertaining to neptune, but interesting. So why post it in a thread about Neptune? May be worth posting. It is, which is why there is already a thread about it: Snow in an Infant Planetary System Something I don't think I can do. http://www.laborator...680011&type=cta You don't think you can post it despite the fact that you posted it. That has me more than a little puzzled.
Comment icon #14 Posted by Ryu on 19 July, 2013, 21:20
It is amazing that bit by bit our knowledge of our solar system is being slowly rewritten as we discover more. THIS is what I like seeing our resources channeled towards. Discovering things, not more wars.
Comment icon #15 Posted by paperdyer on 19 July, 2013, 23:11
Waspie - I meant posting the story as a thread. I know I can post a link. Like the Neptune thread.
Comment icon #16 Posted by Waspie_Dwarf on 19 July, 2013, 23:42
Waspie - I meant posting the story as a thread. I know I can post a link. Like the Neptune thread. You should be able to do that, but nor whilst you are in another topic. Simply go to the relevant forum and towards the top of the page there should be a black button that says "Start new topic". Then post exactly as you would in an existing topic. The only real difference is that you have to fill in the topic title.
Comment icon #17 Posted by NatureBoff on 20 July, 2013, 3:11
S/2004 N 1 is at about twice the distance from Neptune that it rings are, so is not a shepherding moon. it is quite close to being in orbital resonances with its neighboring moons, Larissa and Proteus. Have you heard the phrase "gravitational kick" before in reference to shepherding moons? If so, can you please explain it to me please.
Comment icon #18 Posted by coolguy on 20 July, 2013, 3:49
Very cool find. The Hubble is the greatest thing ever made
Comment icon #19 Posted by Merc14 on 20 July, 2013, 4:20
It is amazing that bit by bit our knowledge of our solar system is being slowly rewritten as we discover more. THIS is what I like seeing our resources channeled towards. Discovering things, not more wars. It is truly amazing what our probes, that so many have complained about since they aren't manned, are baring so much fruit. Personally, as a man born in the 50's, I am in awe of the discoveries we have made with the incredible instruments NASA has put into space. If the Webb makes it, it will change everything. I guarantee that. Hubble is amazing and the rescue mission was an absolute heroic... [More]
Comment icon #20 Posted by AlienDan on 20 July, 2013, 5:39
Found a better pic of it: That's no moon...
Comment icon #21 Posted by Silver Surfer on 20 July, 2013, 7:14
Very cool find. The Hubble is the greatest thing ever made Totally Agree... Check out this doco if you haven't and see how it was very nearly a huge disaster! http://www.youtube.com/watch?v=kzuwiYDwkms
Comment icon #22 Posted by bison on 20 July, 2013, 13:03
Have you heard the phrase "gravitational kick" before in reference to shepherding moons? If so, can you please explain it to me please. The linked article briefly explains the concept, in the context of the Saturn system. Most of this is applicable to shepherding moons in general. In brief, momentum is conserved. It can be transferred from a shepherding moon to ring particles, or to another nearby shepherding moon, when they pass each other in their orbits. http://solarsystem.nasa.gov/news/display.cfm?News_ID=3451


Please Login or Register to post a comment.


  On the forums
Forum posts:
Forum topics:
Members:

5826315
263571
164334

 
Loch Ness Monster sightings are on the rise
12-7-2016
There have been more sightings of the elusive creature this year than during any other this millennium.
Earth to see 25-hour days as rotation slows
12-7-2016
Scientists have been attempting to work out how long it will take for us to gain an extra hour per day.
Germany's nuclear fusion reactor really works
12-6-2016
Scientists have confirmed that the experimental machine is operating with 'unprecedented accuracy'.
Mysterious 'sea blob' sighted after 100 years
12-6-2016
A strange-looking invertebrate has been spotted by a deep-sea ROV over a century after its discovery.
Other news in this category
Earth to see 25-hour days as rotation slows
Posted 12-7-2016 | 3 comments
Scientists have been attempting to work out how long it will take for us to gain an extra hour per day....
 
Trip to the Moon could be available by 2026
Posted 12-5-2016 | 14 comments
Moon Express is hoping to be able to send people on trips to the Moon within as little as ten years....
 
Virgin Galactic test flight proves a success
Posted 12-5-2016 | 2 comments
Richard Branson's fledgling space tourism firm is back on track following a fatal crash two years ago....
 
Buzz Aldrin is evacuated from Antarctica
Posted 12-4-2016 | 14 comments
The Apollo 11 astronaut fell ill just after becoming the oldest person ever to visit the South Pole....
 
New mission aims to revisit Apollo 17 site
Posted 11-30-2016 | 26 comments
The privately-funded endeavour aims to revisit the lunar rover left behind by the Apollo 17 astronauts....
 
New Mars satellite returns first photographs
Posted 11-30-2016 | 6 comments
The Trace Gas Orbiter (TGO) has returned a set of high-quality test photographs from the Red Planet....
 
Astronaut tasked with repairing ISS toilets
Posted 11-28-2016 | 2 comments
One of Thomas Pesquet's first tasks aboard the space station wasn't quite what he was hoping for....
 
'Data glitch' caused demise of Mars lander
Posted 11-26-2016 | 7 comments
Scientists have finally determined exactly what caused the Schiaparelli probe to crash-land on Mars....
 
Did rover find evidence of past life on Mars?
Posted 11-24-2016 | 5 comments
Geologists have managed to link silica deposits on Mars with biological processes occurring on the Earth....
 
Scientists discover huge ice deposit on Mars
Posted 11-23-2016 | 5 comments
NASA's Mars Reconnaissance Orbiter has identified an ice deposit with more water than Lake Superior....
 
EmDrive space engine test passes peer review
Posted 11-22-2016 | 19 comments
NASA's 'impossible' propulsion system continues to intrigue as it receives its first peer-reviewed paper....
 

 View: More news in this category
 
Top   |  Home   |   Forum   |   News   |   Image Gallery   |  Columns   |   Encyclopedia   |   Videos   |   Polls
UM-X 10.7 Unexplained-Mysteries.com 2001-2015
Privacy Policy and Disclaimer   |   Cookies   |   Advertise   |   Contact   |   Help/FAQ