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In this task, you are given a text of many news articles seperated by special token "|||||". Your task is to summarize them.

A dwarf planet is shining two bright lights at a NASA spacecraft right now, and our smartest scientists are unsure what they are. 
  
 As bizarre as that sentence sounds, that's the situation with Ceres — the largest object in the asteroid belt between Mars and Jupiter, officially designated as a dwarf planet (the same category as Pluto). 
  
 NASA's Dawn spacecraft is approaching Ceres ahead of a March 6 rendezvous. The picture above was taken February 19, from a distance of just under 29,000 miles, and shows two very shiny areas on the same basin on Ceres' surface. 
  
 Previous Dawn images from further away showed a single light on Ceres, which was just as mysterious. Then, to the amazement of every astronomy geek, the one light turned out to be two — reflecting roughly 40% of the light hitting them. 
  
 The lights on Ceres in earlier photos from the Dawn spacecraft. Image: NASA/Associated Press 
  
 "This is truly unexpected and still a mystery to us," said Andreas Nathues, lead investigator for the framing camera team at the Max Planck Institute for Solar System Research in Gottingen, Germany, in a NASA statement. "The brightest spot [of the two] continues to be too small to resolve with our camera, but despite its size it is brighter than anything else on Ceres." 
  
 So what could the bright spots be, other than alien castaways signaling at us with flashlights? 
  
 The most obvious contender is ice, although ice would reflect more than 40% of all light hitting it. The difference may be accounted for by the resolution limit of Dawn's camera at this distance. Scientists have previously detected water vapor coming from the surface of the dwarf planet, making ice a more likely option. 
  
 Scientists have also suggested the bright areas could be patches of salt. On the other hand, the location of the two bright spots so close together may be an indication that they have a geologic origin, such as some sort of volcanic process, possibly even ice volcanoes. 
  
 According to Chris Russell, principal investigator for the Dawn mission, the positioning of the bright spots within the same area may indicate "a volcano-like origin of the spots," but scientists will have to wait for higher resolution images before making such interpretations. Scientists don't think the spots comprise lava similar to that seen on Earth, since that would shine more brightly. 
  
 We'll find out more as Dawn approaches Ceres next week and more imagery comes in during the next 16 months, according to NASA. In the meantime, here's more on Dawn and its eight-year mission: ||||| NASA's Dawn spacecraft is getting sharper views of the mysterious bright spot on the dwarf planet Ceres as the probe prepares to go into orbit — and it turns out that the spot is actually two spots, lying next to each other in the same big crater basin. 
  
 Could the spots be patches of ice, welling up from the interior of the biggest asteroid and the smallest known dwarf planet? Stay tuned. 
  
 "Right now, all we can say is that the material reflects 40 percent or more of the light falling on it," UCLA astronomer Chris Russell, the principal investigator for the Dawn mission, told NBC News in an email. "This limit is because of the resolution of the camera at this distance from Ceres. If the final answer ... is that it reflects all the light that falls on it, then the most probable reflector would be ice." 
  
 In a news release accompanying the pictures released on Wednesday, Russell said the spots may have a "volcano-like origin," but added that such an interpretation would depend on the sharper images to come. Last year, scientists reported detecting water vapor escaping from Ceres — leading them to speculate that water might be welling up from beneath the surface. 
  
 These images of the dwarf planet Ceres, processed to enhance clarity, were taken on Feb. 19 from a distance of about 29,000 miles (46,000 kilometers), by NASA's Dawn spacecraft. Dawn observed Ceres completing one full rotation, which lasted about nine hours. The images show the full range of different crater shapes that can be found at Ceres' surface: from shallow, flattish craters to those with peaks at their centers. NASA / JPL-Caltech / UCLA / MPS / DLR / IDA 
  
 These newly released pictures were taken on Feb. 19, when the refrigerator-sized spacecraft was nearly 29,000 miles (46,000 kilometers) away from Ceres. The Dawn probe — which was launched in 2007 and spent the first part of its mission studying the asteroid Vesta — is due to go into orbit around Ceres on March 6. Over the course of the following year, Dawn will map the 590-mile-wide (950-kilometer-wide) mini-world from an altitude eventually swinging as low as 232 miles (373 kilometers). 
  
 Andrea Nathues, lead investigator for Dawn's framing camera team at Germany's Max Planck Institute for Solar System Research, said the white spots are still too small to resolve with the team's camera, but it's already known that they're brighter than anything else on Ceres. 
  
 "This is truly unexpected and still a mystery to us," Nathues said. 
  
 In his email, Russell noted that the brightest bodies in the outer solar system are those with icy surfaces. 
  
 "These would not last on Ceres, and so Ceres has a dark surface," Russell said, "but if there were ice below the surface it might be occasionally exposed a little bit." 
  
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 What if the spots aren't made of ice? "There could be salt on the surface, which would be more reflective than the general claylike material we think covers much of the surface," Russell said. "So there is a range of possibilities." 
  
 Even though the origin of the spots could be volcano-like, scientists have ruled out the possibility that the spots are made up of lava like that seen on Earth or on Io, one of Jupiter's moons. 
  
 "That would make a hot spot," Russell said. "We think we would have noticed a hot spot by now." 
  
 NASA will present a news briefing at noon ET March 2 focusing on the arrival of the Dawn spacecraft at Ceres. The briefing will be aired live via the NASA TV website as well as Ustream. |||||
Output:
With a NASA spacecraft closing in on the dwarf planet Ceres, scientists were looking forward to figuring out the origins of a mysterious bright spot. But it turns out there are actually two bright spots, right next to each other, reports Mashable. The best guess continues to be ice of some kind, and NASA hopes to know for sure after the Dawn spacecraft enters Ceres' orbit on March 6. Once there, it will swoop as low as 232 miles above the surface as it maps the dwarf planet—and produces sharper images of those bright spots. "Right now, all we can say is that the material reflects 40% or more of the light falling on it," UCLA astronomer Chris Russell tells NBC News. "This limit is because of the resolution of the camera at this distance from Ceres. If the final answer ... is that it reflects all the light that falls on it, then the most probable reflector would be ice." Another possibility is salt. (One astronomer thinks Ceres and Pluto are destined to be considered full planets.)