The US Space Agency Nasa has released new footage showing a series of powerful solar flares.
Our monthly digest features astronomy and space science events coming up during Septemberhttps://www.ras.org.uk/news-and-press/2501-space-and-astronomy-digest-september-2014Space and astronomy digest: September 2014
The latest digest of upcoming news and astronomy events, from the RAS. This month sees two spacecraft arrive at Mars, the launch of the latest mission to the International Space Station and the first Paul Ruffle memorial lecture.
NASA's Spitzer Space Telescope has spotted an eruption of dust around a young star, possibly the result of a smashup between large asteroids. This type of collision can eventually lead to the formation of planets.
Astronomers have shown that dead stars known as white dwarfs can re-ignite and explode as supernovas.
The Sun is a variable star, experiencing 11-year-long cycles of activity which impact our planet and near-Earth space. Forecasting the changing space weather and the effects it will have on Earth remains a challenge, as illustrated by an unusual magnetic storm that was observed by ESA’s Cluster quartet and one of the Chinese-ESA Double Star spacecraft.
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The birth of massive galaxies, according to galaxy formation theories, begins with
the buildup of a dense, compact core that is ablaze with the glow of millions of
newly formed stars. Evidence of this early construction phase, however, has
eluded astronomers until now. Astronomers identified a dense galactic core,
dubbed "Sparky," using a combination of data from Hubble and Spitzer, other space telescopes, and the W.M. Keck Observatory in Hawaii. Hubble photographed the
emerging galaxy as it looked 11 billion years ago, just 3 billion years after the
birth of our universe in the big bang.
Astronomers have uncovered for the first time the earliest stages of a massive galaxy forming in the young Universe. The discovery was made possible through combining observations from the NASA/ESA Hubble Space Telescope, NASA's Spitzer Space Telescope, ESA's Herschel Space Observatory, and the W.M. Keck Observatory in Hawaii. The growing galaxy core is blazing with the light of millions of newborn stars that are forming at a ferocious rate. The paper appears in the journal Nature on 27 August.
Astronomers using ESA's INTEGRAL gamma-ray observatory have demonstrated beyond doubt that dead stars known as white dwarfs can reignite and explode as supernovae.
Astronomers have for the first time caught a glimpse of the earliest stages of massive galaxy construction. The building site, dubbed “Sparky,” is a dense galactic core blazing with the light of millions of newborn stars that are forming at a ferocious rate.
Astronomy: Collision history written in rock
Nature 512, 7515 (2014). doi:10.1038/512350c
Meteorites recovered in California have yielded details about their collision-filled journey from the Solar System's asteroid belt.The fragments (pictured) originated from a meteoroid whose fiery descent lit up the night sky over San Francisco in 2012. Peter Jenniskens of NASA's Ames Research
Astrobiology: Cosmic prestige
Nature 512, 7515 (2014). doi:10.1038/512368a
Author: Mario Livio
Mario Livio welcomes a lucid description of attempts to evaluate how special humans are.
Astrophysics: Supernova seen through γ-ray eyes
Nature 512, 7515 (2014). doi:10.1038/512375a
Authors: Robert P. Kirshner
Observations of γ-ray photons from a type Ia supernova indicate that stellar explosions of this kind get their energy from sudden thermonuclear fusion in the progenitor star. See Letter p.406
Neutrinos from the primary proton–proton fusion process in the Sun
Nature 512, 7515 (2014). doi:10.1038/nature13702
In the core of the Sun, energy is released through sequences of nuclear reactions that convert hydrogen into helium. The primary reaction is thought to be the fusion of two protons with the emission of a low-energy neutrino. These so-called pp neutrinos constitute nearly