Science Updates - A look at CfA discoveries from recent journals

SAO's Fred L. Whipple Observatory
November 15, 2019

Paradoxically black holes, which emit no light because of their strong gravitational fields, are regularly discovered via the bright X-ray emission that arises when material accretes onto a torus around a black hole, heating the torus to high temperatures.

composite photograph of the near-Earth asteroid 101955 Bennu
November 8, 2019

Near Earth Objects (NEOs) are small solar system bodies whose orbits sometimes bring them close to the Earth, making them potential collision threats. NEOs also offer clues to the composition, dynamics and environmental conditions of the early solar system and its evolution, and because they are relatively close to the Earth they lend themselves to astronomical measurements.

Korea Microlensing Telescope Network
November 1, 2019

The path of a light beam is bent by the presence of mass, and a massive body can therefore act like a lens (a "gravitational lens") to distort the image of an object seen behind it. Scientists first confirmed Einstein's prediction quantitatively during the now famous total eclipse of 29 May 1919 by observing starlight bent by the mass of the Sun.