Free Republic
Browse · Search
General/Chat
Topics · Post Article

Skip to comments.

Dwarf planet Ceres' bright spots shrink but stay strange on approach
cnet.com ^ | Erik Mack

Posted on 05/25/2015 1:34:35 PM PDT by BenLurkin

As Dawn descends toward its closest orbit around Ceres, it has been imaging the spots along the way, gradually giving us a less pixelated view of the large crater containing what now appear to be several bright spots reflecting the sun back at us. What once looked to be a large bright spot near the center of the dwarf planet soon split into two smaller, nearly adjacent spots upon closer inspection. In the latest view from Dawn, shot on May 16, those two large spots seem to be resolving into several smaller bright spots.

The leading guess from NASA scientists at the moment is that we're seeing some sort of natural reflective surface like ice on the surface of a body that's expected to harbor quite a bit of frozen water beneath its rocky shell.

However, NASA has asked the public for an opinion via online surveys at least twice in the last several months, and so far most humans don't seem to believe (or want to believe, perhaps) that those spots are something as common as patches of ice. In an ongoing survey on the Dawn mission site, "other" is the most popular choice. In another, earlier survey, "frozen lakes" come in second to "underground light soil uncovered by recent meteor impacts." "Something completely different" is the third most popular choice.

While closer views of the spots reveal that they may be smaller and less monolithic than at first glance, they're also getting arguably weirder.

(Excerpt) Read more at cnet.com ...


TOPICS: Astronomy
KEYWORDS: 2112; ceres; rush
Navigation: use the links below to view more comments.
first 1-2021-4041-47 next last

1 posted on 05/25/2015 1:34:35 PM PDT by BenLurkin
[ Post Reply | Private Reply | View Replies]

To: BenLurkin; cripplecreek; brytlea; decimon; bigheadfred; KoRn; Grammy; steelyourfaith; Mmogamer; ...
Thanks BenLurkin, extra to APoD, but no pics?!>

2 posted on 05/25/2015 1:38:19 PM PDT by SunkenCiv (What do we want? REGIME CHANGE! When do we want it? NOW!)
[ Post Reply | Private Reply | View Replies]

To: BenLurkin

3 posted on 05/25/2015 1:41:04 PM PDT by Crazieman (Article V or National Divorce. The only solutions now.)
[ Post Reply | Private Reply | To 1 | View Replies]

To: BenLurkin

4 posted on 05/25/2015 1:42:45 PM PDT by RightGeek (FUBO and the donkey you rode in on)
[ Post Reply | Private Reply | To 1 | View Replies]

To: SunkenCiv

A close-up of the mysterious bright spots on Ceres. Image credit: NASA / JPL-Caltech / UCLA / MPS / DLR / IDA.

"The new image was taken on May 16, 2015 from a distance of 4,500 miles (7,200 km) and has a resolution of 2,250 feet (700 m) per pixel."
http://www.sci-news.com/space/science-bright-spots-ceres-02831.html

5 posted on 05/25/2015 1:43:21 PM PDT by BenLurkin (The above is not a statement of fact. It is either satire or opinion. Or both.)
[ Post Reply | Private Reply | To 2 | View Replies]

To: BenLurkin

Ice from a comet impact. That’s my best guess.


6 posted on 05/25/2015 1:43:27 PM PDT by piytar (Good will be called evil and Evil will be called good.)
[ Post Reply | Private Reply | To 1 | View Replies]

To: Crazieman

I really want to know what the hell those are.

The ice theory is taking a hit because there’s data showing it being reflective in shadow.


7 posted on 05/25/2015 1:44:56 PM PDT by Crazieman (Article V or National Divorce. The only solutions now.)
[ Post Reply | Private Reply | To 3 | View Replies]

To: Crazieman

Does anyone know how big an area that is?


8 posted on 05/25/2015 1:45:18 PM PDT by GeronL (free short story: http://flscifi.blogspot.com/2015/05/free-short-story-proper-care-feeding-of.html)
[ Post Reply | Private Reply | To 3 | View Replies]

To: RightGeek

Nasa asks for the public’s help to identify mysterious bright spots on Ceres
http://www.independent.co.uk/news/science/nasa-asks-for-the-publics-help-to-identify-mysterious-bright-spots-on-ceres-10274348.html


9 posted on 05/25/2015 1:45:53 PM PDT by BenLurkin (The above is not a statement of fact. It is either satire or opinion. Or both.)
[ Post Reply | Private Reply | To 4 | View Replies]

To: piytar
Death star doing a range calibration
10 posted on 05/25/2015 1:47:11 PM PDT by spokeshave
[ Post Reply | Private Reply | To 6 | View Replies]

To: BenLurkin

Obviously one of our new Alien Overlords
left the lights on when they left the
habitat...


11 posted on 05/25/2015 1:49:29 PM PDT by tet68 ( " We would not die in that man's company, that fears his fellowship to die with us...." Henry V.)
[ Post Reply | Private Reply | To 5 | View Replies]

To: BenLurkin
Current position. Its only made one close pass about 8000 miles away from the surface.


12 posted on 05/25/2015 1:50:22 PM PDT by cripplecreek ("For by wise guidance you can wage your war")
[ Post Reply | Private Reply | To 1 | View Replies]

To: tet68

Secondly they are oriented JUST like the pyramids
on Mars. Could it be possible? Yes it could.


13 posted on 05/25/2015 1:50:57 PM PDT by tet68 ( " We would not die in that man's company, that fears his fellowship to die with us...." Henry V.)
[ Post Reply | Private Reply | To 11 | View Replies]

To: BenLurkin

I see. So they have their own planet.


14 posted on 05/25/2015 1:52:17 PM PDT by 9thLife (The dream is free. The hustle is sold separately.)
[ Post Reply | Private Reply | To 1 | View Replies]

To: BenLurkin

If it were a reflection, it would brighten and dim rapidly as it turned. It is either a very white surface reflecting light or it is actual artificial light.


15 posted on 05/25/2015 1:53:12 PM PDT by cuban leaf (The US will not survive the obama presidency. The world may not either.)
[ Post Reply | Private Reply | To 1 | View Replies]

To: spokeshave

16 posted on 05/25/2015 1:54:44 PM PDT by ClearCase_guy (Claire Wolfe should check her watch. It's time.)
[ Post Reply | Private Reply | To 10 | View Replies]

To: BenLurkin
Dwarf Planet Bright Spots


17 posted on 05/25/2015 1:56:20 PM PDT by 9thLife (The dream is free. The hustle is sold separately.)
[ Post Reply | Private Reply | To 1 | View Replies]

To: cuban leaf
If it were a reflection, it would brighten and dim rapidly as it turned. It is either a very white surface reflecting light or it is actual artificial light.

I'm curious if the camera and length of exposure is making these spots look brighter than they really are.

18 posted on 05/25/2015 2:11:29 PM PDT by aimhigh (1 John 3:23)
[ Post Reply | Private Reply | To 15 | View Replies]

To: piytar

Yeah I’m guessing ice or something like titanium oxide which is abundant in space.


19 posted on 05/25/2015 2:11:48 PM PDT by cripplecreek ("For by wise guidance you can wage your war")
[ Post Reply | Private Reply | To 6 | View Replies]

To: BenLurkin

4500 miles and a resolution of 700m per pixel?!

spy satellites from the early 70s could take pictures from 22,000 miles and had a resolution of < 1m per pixel. ONE METER.

40 year old tech was 490,000x (700x700) better?!

reference: http://www.space.com/12996-secret-spy-satellites-declassified-nro.html


20 posted on 05/25/2015 2:14:04 PM PDT by sten (fighting tyranny never goes out of style)
[ Post Reply | Private Reply | To 5 | View Replies]


Navigation: use the links below to view more comments.
first 1-2021-4041-47 next last

Disclaimer: Opinions posted on Free Republic are those of the individual posters and do not necessarily represent the opinion of Free Republic or its management. All materials posted herein are protected by copyright law and the exemption for fair use of copyrighted works.

Free Republic
Browse · Search
General/Chat
Topics · Post Article

FreeRepublic, LLC, PO BOX 9771, FRESNO, CA 93794
FreeRepublic.com is powered by software copyright 2000-2008 John Robinson