Cold dust grains discovered in planet forming disc
Q. Which unexpected discovery has been made in planet forming disc called the Flying Saucer around 400 light years from earth?- Published on 09 Feb 16a. Calcium meteorites
b. Cold dust grains
c. Frozen water bodies
d. None of the above
ANSWER: Cold dust grains
International team of researchers have found cold dust grains in the planet forming disc named the Flying Saucer around 400 light years from earth. France’s team at the Laboratoire d'Astrophysique de Bordeaux, measured the temperature of large dust grains around the young star named '2MASS J16281370-2431391' in the Rho Ophiuchi star formation region. Specific disc was seen on the edge and its appearance in visible light pictures has led to the coining of the moniker the Flying Saucer. Scientists came up with very sharp images and saw a negative signal which is normally physically impossible. The negative signal indicates parts of the disc are cooler than its background.
