'Little Cub' gives astronomers rare chance to see galaxy demise
https://news.ucsc.edu/2017/07/little-cub-galaxy.html

A primitive galaxy that could provide clues about the early universe has been spotted by astronomers as it begins to be consumed by a gigantic neighboring galaxy.

The Little Cub galaxy--so called because it sits in the Ursa Major or Great Bear constellation--is being stripped of the gas needed to continue forming stars by
its larger companion. The find means scientists now have a rare opportunity to observe a dwarf galaxy as its gas is removed by the effects of a nearby giant galaxy
to learn more about how this process happens. As the Little Cub has remained almost pristine since its formation, scientists also hope its elements will reveal more
about the chemical signature of the universe just minutes after the Big Bang. The research, carried out by UC Santa Cruz and Durham University, UK, is being presented
on Tuesday, July 4, at the Royal Astronomical Society's National Astronomy Meeting.

The Little Cub and its larger neighbor, a spiral galaxy called NGC 3359, are about 200 to 300 thousand light years apart, and approximately 50 million light years
from Earth. Gas from the Little Cub is being stripped away by its interaction with NGC 3359, which has up to 10,000 times as many stars as the Little Cub and is
similar to our Milky Way. By observing this cosmic feast, scientists hope to understand more about how and when gas is lost from smaller galaxies.

Striking Gemini Images Point Juno Spacecraft Toward Discovery | Gemini Observatory
http://gemini.edu/node/12679

Very detailed Gemini Observatory images peel back Jupiter’s atmospheric layers to support
the NASA/JPL Juno spacecraft in its quest to understand the giant planet’s atmosphere.

Hidden red dwarf discovered in dust of giant star | University of Hertfordshire
http://www.herts.ac.uk/about-us/news/2017/july/hidden-red-dwarf-discovered-in-dust-of-giant-star

Observations of the brightest star in the infrared sky by a team of astronomers, including researchers
from the University of Hertfordshire, have revealed that the dust surrounding it hides a small red dwarf star.

CW Leonis, a red giant star 500 times the size of the Sun is located in the Leo constellation 300 light years away.
This is an evolving star that is ejecting significant amounts of dust forming an enveloping cloud many times the size
of our solar system. It has been the subject of hundreds of studies over the years, but only now has the existence
of a smaller red dwarf star been found within the dust cloud.

From 1994 to 2000, using a one meter telescope at the Observatory of Torino, Professor Richard Smart at the University
of Hertfordshire observed a minute wobble in the motion of CW Leonis that defied explanation. This wobble was very small -
equivalent to the side of a 10p coin on the Moon as seen from the Earth - but it was detectable.

A recent study of the dust around CW Leonis revealed a swirl pattern that was hypothesised to be due to the presence of
an unseen companion star. Introducing the companion resolved the 17-year-old mystery of the wobble. The research has
been accepted for publication in Monthly Notices of the Royal Astronomical Society (MNRAS).

MACH in VR: 7 Big Questions About The Cosmos
https://www.youtube.com/watch?v=uujewwFiS-s


Why Are Distant Galaxies Aligned?
https://www.youtube.com/watch?v=TbeJUcABezw

Pulsar Candidate in Andromeda

NASA's Nuclear Spectroscope Telescope Array, or NuSTAR, has identified a candidate pulsar in Andromeda - the nearest large galaxy to the Milky Way.
This likely pulsar is brighter at high energies than the Andromeda galaxy's entire black hole population. The inset image shows the pulsar candidate
in blue, as seen in X-ray light by NuSTAR. The background image of Andromeda was taken by NASA's Galaxy Evolution Explorer in ultraviolet light.

Andromeda is a spiral galaxy like our Milky Way but larger in size. It lies 2.5 million light-years away in the Andromeda constellation.

Image credit: NASA/JPL-Caltech/GSFC/JHU

Night sky guide for July 2017
https://watchers.news/2017/07/01/night-sky-guide-july-2017/

Tonight's Sky: July 2017
https://www.youtube.com/watch?v=aC2s_-IcLcg

New faint dwarf galaxy discovered
https://phys.org/news/2017-07-faint-dwarf-galaxy.html

Astronomers have detected a new faint dwarf spheroidal galaxy using Japan's Subaru Telescope located in Hawaii. The newly found dwarf, designated d1005+68,
belongs to a nearby galaxy group known as the M81 Group. The new findings were presented June 22 in a paper published on the arXiv pre-print repository.

Large sample of giant radio galaxies discovered | OUPblog
https://blog.oup.com/2017/07/giant-radio-galaxies-discovered/

Recently a team of astronomers from India have reported discovery of a large number of extremely rare kind of galaxies called “giant radio galaxies” (GRGs),
using a nearly 20 year old radio survey. GRGs are the largest galaxies known in the Universe, which are visible only to radio telescopes. These extremely active
form of galaxies harbor a super massive black hole ‘central-engine’ at the nucleus, which ejects a pair of high energy particle jets nearly at the speed of light,
which terminate into two giant radio lobes. These behemoths span nearly three million light years across, or even more sometimes. This size corresponds to stacking
nearly 33 Milky Way like galaxies in a line!

Under pressure - extreme atmosphere stripping may limit exoplanets’ habitability
http://www.ras.org.uk/...der-pressure-extreme-atmosphere-stripping-may-limit-exoplanets-habitability

New models of massive stellar eruptions hint at an extra layer of complexity when considering whether an exoplanet may be habitable or not.
Models developed for our own Sun have now been applied to cool stars favoured by exoplanet hunters, in research presented by Dr Christina Kay,
of the NASA Goddard Flight Center, on Monday 3rd July at the National Astronomy Meeting at the University of Hull.

Coronal mass ejections (CMEs) are huge explosions of plasma and magnetic field that routinely erupt from the Sun and other stars. They are
a fundamental factor in so called “space weather”, and are already known to potentially disrupt satellites and other electronic equipment on Earth.
However, scientists have shown that the effects of space weather may also have a significant impact on the potential habitability of planets around
cool, low mass stars - a popular target in the search for Earth-like exoplanets.

This image taken with ALMA and Hubble Space Telescope captures the “Hubble Ultra Deep Field,” the farthest reaches of space. The purple regions are the galaxies
(collections of stars) captured by the Hubble Space Telescope. And, the orange areas are the distribution of carbon monoxide gas, which is material for stars, taken
with ALMA. Comparing these two data sets, astronomers will tackle the big mystery of how fast the galaxies in the Universe generated stars about 10 billion years ago.

Looking into the Depths of the Universe with Two Telescopes | NAOJ: National Astronomical Observatory of Japan - English
http://www.nao.ac.jp/en/gallery/weekly/2017/20170627-alma.html