Sihao Cheng

A small team led by Sihao Cheng, Martin A. and Helen Chooljian Member in the School of Natural Sciences, has discovered an extraordinary trans-Neptunian object (TNO) at the edge of our solar system. The TNO is potentially large enough to qualify as a dwarf planet, the same category as the much more well-known Pluto. The discovery has significant implications for our understanding of the Kuiper Belt and hypotheses that surround the existence of Planet Nine.

A small team led by Sihao Cheng, Martin A. and Helen Chooljian Member in the School of Natural Sciences, has discovered an extraordinary trans-Neptunian object (TNO) at the edge of our solar system. The TNO is potentially large enough to qualify as a dwarf planet, the same category as the much more well-known Pluto. The discovery has significant implications for our understanding of the Kuiper Belt and hypotheses that surround the existence of Planet Nine.

In a paper published in Nature, Sihao Cheng, Martin A. and Helen Chooljian Member in the School of Natural Sciences, and his collaborators have proposed a new theory that explains why a puzzling population of white dwarf stars stopped cooling for ten billion years. 

In a paper published today in Nature, Sihao Cheng, Martin A. and Helen Chooljian Member in the Institute’s School of Natural Sciences, and his collaborators have proposed a new theory that explains why a puzzling population of white dwarf stars stopped cooling for ten billion years.