Cosmic dust

SOFIA Helps Reveal a Destroyed Planetary System

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Wednesday, May 24, 2023
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These observations provide one potential explanation for the fate of these planetary remains.

Key Points: 
  • These observations provide one potential explanation for the fate of these planetary remains.
  • The Helix Nebula is an old planetary nebula – expanding, glowing gas ejected from its host star after its main-sequence life ended.
  • The nebula has a very young white dwarf at its center, but this central white dwarf is peculiar.
  • To answer the question of where this excess emission comes from, the astronomers first determined where it could not have come from.

TAWANI Foundation Gifts Over $1.3M to the SETI Institute and the Field Museum in Honor of Earth Day

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Thursday, April 20, 2023
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Chicago, April 20, 2023 (GLOBE NEWSWIRE) -- The TAWANI Foundation announces its commitment of $1.3M to the SETI Institute and continued support for the Robert A. Pritzker Center for Meteoritics and Polar Studies at the Field Museum in honor of Earth Day.

Key Points: 
  • Chicago, April 20, 2023 (GLOBE NEWSWIRE) -- The TAWANI Foundation announces its commitment of $1.3M to the SETI Institute and continued support for the Robert A. Pritzker Center for Meteoritics and Polar Studies at the Field Museum in honor of Earth Day.
  • This year, the Institute’s Anthropo Snow Project will receive $210,000, the first installment of a three-year gift totaling $630,000.
  • Heck serves as curator of Meteoritics and Polar Studies and senior director of research at the Field Museum.
  • “We are proud to support these and other paleoenvironmental studies this Earth Day and beyond.”
    To learn more about TAWANI Foundation grants, visit www.tawanifoundation.org/our-grants .

Supernovae Could Explain Cosmic Dust in the Early Universe

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Monday, June 13, 2022
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and PASADENA, Calif., June 13, 2022 /PRNewswire/ -- New research from the Stratospheric Observatory for Infrared Astronomy (SOFIA) High-Resolution Airborne Wideband Camera Plus (HAWC+) provides evidence that the cosmic dust in the early universe was formed in supernovae.

Key Points: 
  • and PASADENA, Calif., June 13, 2022 /PRNewswire/ -- New research from the Stratospheric Observatory for Infrared Astronomy (SOFIA) High-Resolution Airborne Wideband Camera Plus (HAWC+) provides evidence that the cosmic dust in the early universe was formed in supernovae.
  • Though theoretical models have previously shown that dust formation in supernovae could explain the presence of dust in the early universe, whether there would be evidence of sufficient amounts of dust forming remained an open question.
  • For one, the fact that polarized dust emission comes from an SNR implies that supernovae produce a large mass of dust and were important dust sources in the early universe.
  • The large amount of dust from the polarized regions of the SNR shows that supernovae are major dust producers in the early universe.