Recent Comments

    Category Astronomy/Space

    Large No. of Dwarf Galaxies discovered in Early Universe

    November 22, 2016, Categories  Astronomy/Space

    Massive cluster of galaxies Abell 1689 creates a strong gravitational effect on background and older galaxies, seen as arcs of light. Astronomers found the large population of distant dwarf galaxies from when the universe was between two to six billion years old. This cosmic time is critical as it is the most productive time for star formation in the universe. Credit: NASA, ESA, B. Siana, and A. Alavi

    Massive cluster of galaxies Abell 1689 creates a strong gravitational effect on background and older galaxies, seen as arcs of light. Astronomers found the large population of distant dwarf galaxies from when the universe was between two to six billion years old. This cosmic time is critical as it is the most productive time for star formation in the universe. Credit: NASA, ESA, B. Siana, and A. Alavi

    Using the gravitational lensing, astronomers have discovered a large number of dwarf galaxies in the early universe. This could reveal important details about a productive period of star formation in the universe billions of years ago. The findings build on a growing body of knowledge about dwarf galaxies, the smallest and dimmest galaxies in the universe.

    It is believed that dwarf galaxies p...

    Read More

    Record-Breaking Faint Satellite Galaxy of the Milky Way discovered

    November 22, 2016, Categories  Astronomy/Space

    The position of Virgo I in the constellation of Virgo (left). The right panel shows a density map of Virgo I's member stars in a 0.1 deg x 0.1 deg area, based on the stars located inside the green zone in the color-magnitude diagram of Virgo I shown in Figure 4. The color range from blue -> white -> yellow -> red indicates increasing density. (Credit: Tohoku University/National Astronomical Observation of Japan)

    The position of Virgo I in the constellation of Virgo (left). The right panel shows a density map of Virgo I’s member stars in a 0.1 deg x 0.1 deg area, based on the stars located inside the green zone in the color-magnitude diagram of Virgo I shown in Figure 4. The color range from blue -> white -> yellow -> red indicates increasing density. (Credit: Tohoku University/National Astronomical Observation of Japan)

    An international team has found an extremely faint dwarf satellite galaxy of the Milky Way. The team’s discovery is part of the ongoing Subaru Strategic Survey using Hyper Suprime-Cam. The satellite, named Virgo I, lies in the direction of the constellation Virgo. At the absolute magnitude of -0.8 in the optical waveband, it may well be the faintest satellite galaxy yet found...

    Read More

    Forming Stars in the Early Universe

    November 21, 2016, Categories  Astronomy/Space

    A Hubble image of a field of distant galaxies. A new study of the gas content in galaxies so distant their light has been traveling for about ten billion years suggests that the processes converting gas into stars is about the same back then as in the local universe. NASA, ESA, G. Illingworth (UCO/Lick & UCSC), R. Bouwens (UCO/Lick & Leiden U.), and the HUDF09 Team

    A Hubble image of a field of distant galaxies. A new study of the gas content in galaxies so distant their light has been traveling for about ten billion years suggests that the processes converting gas into stars is about the same back then as in the local universe. NASA, ESA, G. Illingworth (UCO/Lick & UCSC), R. Bouwens (UCO/Lick & Leiden U.), and the HUDF09 Team

    The first stars appeared ~100 million years after the big bang, and ever since then stars and star formation processes have lit up the cosmos. When the universe was about 3 billion years old, star formation activity peaked at rates about 10 times above current levels...

    Read More

    Best Weather Satellite ever built rockets into space

    November 20, 2016, Categories  Astronomy/Space, Environment/Geology

    Best weather satellite ever built rockets into space

    This photo provided by United Launch Alliance shows a United Launch Alliance (ULA) Atlas V rocket carrying GOES-R spacecraft for NASA and NOAA lifting off from Space Launch Complex-41 at 6:42 p.m. EST at Cape Canaveral Air Force Station, Fla., Saturday, Nov. 19, 2016. The most advanced weather satellite ever built rocketed into space Saturday night, part of an $11 billion effort to revolutionize forecasting and save lives. (United Launch Alliance via AP)

    The most advanced weather satellite ever built rocketed into space Saturday night, part of an $11 billion effort to revolutionize forecasting and save lives. This new GOES-R spacecraft will track U.S. weather as never before: hurricanes, tornadoes, flooding, volcanic ash clouds, wildfires, lightning storms, even solar flares...

    Read More