Measuring the mass of a galaxy cluster is difficult—clusters cannot be “weighed” by placing them on a scale. Digvijay Wadekar, current Member in the School of Natural Sciences, has worked to develop an AI program to identify new variables that might make inferring the mass from other observable quantities more accurate.
Of the Hubble Space Telescope, John Norris Bahcall, former
Professor in the School of Natural Sciences, and colleagues wrote,
“What is at stake is not only a piece of stellar technology but our
commitment to the most fundamental human quest...
Juna Kollmeier, former
Junior Visiting Professor in the School of Natural Sciences, wants
to understand the substance of the universe: What forms space
structures like galaxies, supermassive black holes, and the
intergalactic medium that fills the...
The Event Horizon Telescope (EHT) project, a multinational
effort involving more than 100 researchers, including School of
Natural Sciences Members Dimitrios Psaltis (2001–03),
Feryal Özel (2002–05), and
Ramesh Narayan (1987–88,
1994, 2001 and...
The Gaia spacecraft, which was launched in late 2013 by the
European Space Agency, is on a mission to chart the heavens in
unprecedented detail. By the end of its five-year-long run it will
pinpoint the positions of one billion stars in the sky with...
A recently discovered ultra-faint dwarf galaxy is sending
astronomers clues about the makeup of dark matter in the
neighborhood of the Milky Way. It is one more clue that a type of
stellar object called massive compact halo objects (MACHOs)