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Astronomy Today is an astronomy news aggregator with news, articles and information from different sources on astronomy, astrobiology, space and planetary exploration with a huge archive of more than 30,000 news articles updated daily.

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Planetary Society Blog

Martian subsurface habitability and astrobiology can be evaluated via a lava tube cave, without drilling. MACIE addresses two key goals of the Decadal Survey (2013-2022) and three MEPAG goals....

05/13/2021

Planetary Society Blog

Saturn's E ring consists of micron-sized particles launched from Enceladus by that moon's geological activity. A variety of small-scale structures in the E-ring's brightness have been attributed to tendrils of material recently launched from Enceladus....

05/13/2021

Recent articles published in 'Astronomy & Astrophysics'

Authors: A. Bouquety, L. Jorda, O. Groussin, A. Sejourné, S. Bouley and F. Costard.
Astronomy & Astrophysics Vol. 649 , page A82
Published online: 13/05/2021
Keywords: comets: individual: 67P/Churyumov-Gerasimenko ; methods: data analysis ; planets and satellites: surfaces.

05/13/2021

Recent articles published in 'Astronomy & Astrophysics'

Authors: Indrani Das, Shantanu Basu and Philippe André.
Astronomy & Astrophysics Vol. 649 , page L13
Published online: 13/05/2021
Keywords: magnetic fields ; stars: formation ; diffusion ; magnetohydrodynamics (MHD) ; ISM: clouds.

05/13/2021

Recent articles published in 'Astronomy & Astrophysics'

Authors: Javier Román, Michael G. Jones, Mireia Montes, Lourdes Verdes-Montenegro, Julián Garrido and Susana Sánchez.
Astronomy & Astrophysics Vol. 649 , page L14
Published online: 13/05/2021
Keywords: galaxies: dwarf ; galaxies: evolution ; galaxies: photometry.

05/13/2021

Recent articles published in 'Astronomy & Astrophysics'

Authors: J. Cernicharo, M. Agúndez, C. Cabezas, B. Tercero, N. Marcelino, J. R. Pardo and P. de Vicente.
Astronomy & Astrophysics Vol. 649 , page L15
Published online: 13/05/2021
Keywords: molecular data ; line: identification ; ISM: molecules ; ISM: individual objects: TMC-1 ; astrochemistry.

05/13/2021

Space.com

Three images of Jupiter from the 8-m Frederick C. Gillett Gemini North telescope at the Gemini Observatory and the NASA/ESA Hubble Space Telescope show the gas giant at three different types of light (infrared, visible, and ultraviolet) and reveal a multitude of atmospheric features such as the Great Red Spot, superstorms, and cyclones stretching across [...]

05/12/2021

Space.com

On May 10, 2021, NASA’s OSIRIS-REx spacecraft fired its main engines full throttle for seven minutes; this burn thrust the spacecraft away from the asteroid Bennu at 1,000 kmh (600 mph), setting it on a 2.5-year cruise towards Earth. “OSIRIS-REx’s many accomplishments demonstrated the daring and innovate way in which exploration unfolds in real time,” [...]

05/12/2021

ESA Space Science

Video: 00:00:58 The beauty shot video of the international James Webb Space Telescope (Webb) showing off the telescope's primary mirror.The world’s most powerful space science telescope has opened its primary mirror for the last time on Earth.As part of Webb’s final tests, the 6.5 meter (21 feet 4 inch) mirror was commanded to fully expand and lock itself into place, just like it would in space. The conclusion of this test represents the team’s final checkpoint in a long series of tests designed to ensure Webb’s 18 hexagonal mirrors are prepared for a long journey in space, and a life of profound discovery. After this, all of Webb’s many movable parts will have confirmed in testing that they can perform their intended operations after being exposed to the expected launch environment. Making the testing conditions close to what Webb will experience in space helps to ensure the observatory is fully prepared for its science mission one million miles away from Earth.
Commands to unlatch and deploy the side panels of the mirror were relayed from Webb’s testing control room at Northrop Grumman, in Redondo Beach, California. The software instructions sent, and the mechanisms that operated are the same as those used in space. Special gravity offsetting equipment was attached to Webb to simulate the zero-gravity environment in which its complex mechanisms will operate. All of the final thermal blanketing and innovative shielding designed to protect its mirrors and instruments from interference were in place during testing.Read more.Webb is an international partnership between NASA, ESA and CSA. The telescope will launch on an Ariane 5 from Europe's Spaceport in French Guiana.

05/12/2021

ESA Top News

Image: The world’s most powerful space science telescope has opened its primary mirror for the last time on Earth.As part of the international James Webb Space Telescope’s final tests, the 6.5 meter (21 feet 4 inch) mirror was commanded to fully expand and lock itself into place, just like it would in space. The conclusion of this test represents the team’s final checkpoint in a long series of tests designed to ensure Webb’s 18 hexagonal mirrors are prepared for a long journey in space, and a life of profound discovery. After this, all of Webb’s many movable parts will have confirmed in testing that they can perform their intended operations after being exposed to the expected launch environment.Making the testing conditions close to what Webb will experience in space helps to ensure the observatory is fully prepared for its science mission one million miles away from Earth.Commands to unlatch and deploy the side panels of the mirror were relayed from Webb’s testing control room at Northrop Grumman, in Redondo Beach, California. The software instructions sent, and the mechanisms that operated are the same as those used in space. Special gravity offsetting equipment was attached to Webb to simulate the zero-gravity environment in which its complex mechanisms will operate. All of the final thermal blanketing and innovative shielding designed to protect its mirrors and instruments from interference were in place during testing.Read more.Webb is an international partnership between NASA, ESA and CSA. The telescope will launch on an Ariane 5 from Europe's Spaceport in French Guiana.

05/12/2021