European Space Agency
Jet Propulsion Laboratory, Pasadena, Calif.
NASA Headquarters, Washington DC
Using new data from NASA’s Cassini spacecraft, researchers believe they have solved a longstanding mystery of solar system science: the length of a day on Saturn. It’s 10 hours, 33 minutes and 38 seconds.
The figure has eluded planetary scientists for decades, because the gas giant has no solid surface with landmarks to track as it rotates, and it has an unusual magnetic field that hides the planet’s rotation rate.
The answer, it turned out, was hidden in the rings.
NASA’s Webb Observatory Requires More Time for Testing and Evaluation; New Launch Window Under Review
NASA Release by Jen Rae Wang / Steve Cole
Ariel Goobar & Rahman Amanullah
Oskar Klein Centre at Stockholm University, Stockholm, Sweden
Harvard-Smithsonian Center for Astrophysics
Transiting rocky super-Earth found in habitable zone of quiet red dwarf star
ESO’s VLT spots brand-new type of star formation
European Space Agency, Noordwijk, Netherlands
M. Ramy El-Maarry
University of Colorado
ESA Rosetta project scientist
NOTE: Make sure you check 0ut the accompanying Space Photo Exploration page for Comet 67P/Churyumov-Gerasimenko
Director, Max-Planck-Institut für extraterrestrische Physik
Garching bei München, Germany
March 15, 2017
VLT observations of distant galaxies suggest they were dominated by normal matter
We see normal matter as brightly shining stars, glowing gas and clouds of dust. But the more elusive dark matter does not emit, absorb or reflect light and can only be observed via its gravitational effects. The presence of dark matter can explain why the outer parts of nearby spiral galaxies rotate more quickly than would be expected if only the normal matter that we can see directly were present .
This research was presented in a paper entitled “Dust in the Reionization Era: ALMA Observations of a z =8.38 Gravitationally-Lensed Galaxy”
by Laporte et al., to appear in The Astrophysical Journal Letters.