Like Earth, space has weather. Except instead of swirling winds and downpours of precipitation, space weather is defined by shifting electric and magnetic fields and rains of charged particles. At the very beginning of space, starting just 60 miles above Earth’s surface, there’s a layer of the atmosphere that shifts and changes in concert with both types of weather.
Daily Archive: January 4, 2018
An international team of astronomers has revealed an ‘astonishing’ overabundance of massive stars in a neighbouring galaxy.
Twinkle, twinkle, little star, how I wonder what you are. Astronomers are hopeful that the powerful infrared capability of NASA’s James Webb Space Telescope will resolve a puzzle as fundamental as stargazing itself—what IS that dim light in the sky? Brown dwarfs muddy a clear distinction between stars and planets, throwing established understanding of those bodies, and theories of their formation, into question.
According to new research, more than half of babies in the United States are given non-milk foods and fluids before the recommended 6-month mark.
What is pancreas divisum? Learn more here and find some of the best treatment options, in addition to management tips and diet information.
Striving to look younger? Exercising our facial muscles for 30 minutes at least every other day could knock years off our appearance, a new study suggests.
Environmental challenges, climate change, water and food security and urban air pollution are all interlinked, yet each is studied separately. This is not a sustainable situation, for anybody anymore. To tackle this, professor Markku Kulmala calls for a continuous, comprehensive monitoring of interactions between the planet’s surface and atmosphere in his article “Build a global Earth observatory,” published in Nature, January 4, 2018.
Astronomers have found a new eclipsing binary system by analyzing archival survey data and conducting follow-up radial velocity measurements. The newly found binary, designated SDSSJ1156-0207, is composed of two M-dwarf stars orbiting each other at a relatively close distance. The finding is presented in a paper published December 24 on the arXiv pre-print repository.
Just as the sun is moving within the Milky Way, all the stars in galaxies are moving, but with very different orbits. Some of the stars have strong rotations, while others may be moving randomly with no clear rotation. Comparing the fraction of stars on different orbits, researchers can determine how galaxies form and evolve. An international team of astronomers has derived directly, for the first time, the orbital distribution of a galaxy sample containing more than 300 galaxies of the local universe. The results, published in Nature Astronomy, are based on the CALIFA survey, a project developed at Calar Alto Observatory and conceived from the Institute of Astrophysics of Andalusia (IAA-CSIC).