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Sandra Flores

Star Formation - 0 views

Heated gas stream at a cool star formation?In the inner regions of a galaxy cluster, astronomers found by Michael McDonald from the Massachusetts Institute of Technology in the USA further evidence...

stars cosmos astronomy

started by Sandra Flores on 02 Nov 14 no follow-up yet
Sandra Flores

Comet Lovejoy visible in the night sky - 0 views

Observing Tip: Comet Lovejoy visible in the night skyLovejoy has developed over the past few weeks, far better than predicted - the chances of being able to see him in January with the naked eye, a...

started by Sandra Flores on 05 Jan 15 no follow-up yet
Sandra Flores

Comet Lovejoy visible in the night sky - 0 views

Observing Tip: Comet Lovejoy visible in the night skyLovejoy has developed over the past few weeks, far better than predicted - the chances of being able to see him in January with the naked eye, a...

started by Sandra Flores on 09 Jan 15 no follow-up yet
Astro Biology

Milky Way View From Space Station - 0 views

milky way spacecraft space exploration nasa news

shared by Astro Biology on 17 Oct 14 - No Cached
  • Astro Biology on 17 Oct 14
     
    The Milky way steals the show from Sahara sands that make the Earth glow orange. Reid Wiseman a NASA astronaut has captured this pic from International Space Station.
  • Astro Biology on 17 Oct 14
     
    The Milky way steals the show from Sahara sands that make the Earth glow orange. Reid Wiseman a NASA astronaut has captured this pic from International Space Station.
Janos Haits

Welcome to the LISC web portal - LISC - LISA International Science Community - 0 views

www.lisa-science.org

science astronomy Astrophysics physics space cosmology planetary universe solar galactic

shared by Janos Haits on 24 Mar 11 - No Cached
  • Janos Haits on 24 Mar 11
     
    website features news, resources, and discussion boards about LISA (the Laser Interferometer Space Antenna), a space-based gravitational-wave observatory that will allow us to detect gravitational waves from massive black-hole mergers in the centers of galaxies, from the ultra-compact binary systems in our own Galaxy, and from many other sources. A joint ESA and NASA mission, LISA will create revolutionary research opportunities in astrophysics and fundamental physics.
Sandra Flores

First images of the comet - 0 views

Send Mars probes first images of the cometOn Sunday evening, the comet C / 2013 A1 (Siding Spring) is over flown at a distance of almost 140,000 kilometers on Mars. All active Mars probes have surv...

started by Sandra Flores on 05 Jan 15 no follow-up yet
Sandra Flores

First images of the comet - 0 views

Send Mars probes first images of the cometOn Sunday evening, the comet C / 2013 A1 (Siding Spring) is over flown at a distance of almost 140,000 kilometers on Mars. All active Mars probes have surv...

started by Sandra Flores on 09 Jan 15 no follow-up yet
Janos Haits

SETILive - 1 views

setilive.org

seti citizenscience Astronomy Science space universe galactic solar cosmology

shared by Janos Haits on 16 Mar 12 - No Cached
  • Janos Haits on 16 Mar 12
     
    SETILive is taking the Search for Extraterrestrial Intelligence (SETI) directly to you by presenting radio frequency signals LIVE from the SETI Institute's Allen Telescope Array (ATA) while it's pointed at stars that, based on Kepler exoplanet discoveries, have the best chances of being home to an alien civilization. We'll also be putting you "in the loop" where if enough of you see a potential extraterrestrial (ET) signal in the same data, then within minutes, the ATA will be interrupted and sent back to take a second look. The data you see will be from frequencies where human-made Radio Frequency Interference (RFI) crowds them and we believe the human eye will have a better chance than SETI's computer algorithms to find ET signals there.
Todd Suomela

Space storm alert: 90 seconds from catastrophe - space - 23 March 2009 - New Scientist - 0 views

www.newscientist.com/...-seconds-from-catastrophe.html

astronomy solar catastrophe coronal-mass-ejection black-swan gloom-and-doom electricity electric-grid risk space-weather

shared by Todd Suomela on 27 Mar 09 - Cached
  • Todd Suomela on 27 Mar 09
     
    The most serious space weather event in history happened in 1859. It is known as the Carrington event, after the British amateur astronomer Richard Carrington, who was the first to note its cause: "two patches of intensely bright and white light" emanating from a large group of sunspots. The Carrington event comprised eight days of severe space weather.
Astro Biology

Know More About Plenty of Water in Asteroid Fragments - 0 views

www.astrobio.net/...dance-water-asteroid-fragments

asteroid water fragment news from nasa space exploration

shared by Astro Biology on 28 Oct 14 - No Cached
  • Astro Biology on 28 Oct 14
     
    Do you know new study could provide visions about the abundance of water in fragments from a famous asteroid? This research mainly focused on a mineral called apatite. Want to know more about this asteroid?
  • Astro Biology on 28 Oct 14
     
    Do you know new study could provide visions about the abundance of water in fragments from a famous asteroid? This research mainly focused on a mineral called apatite. Want to know more about this asteroid?
Janos Haits

Berkeley SETI - 1 views

seti.berkeley.edu/listen

data archive astronomy science Space universe planetary galactic cosmology solar

shared by Janos Haits on 20 Feb 20 - No Cached
  • Janos Haits on 20 Feb 20
     
    "Berkeley SETI Research Center scientists and engineers are working with Breakthrough Listen to make data from Breakthrough available to the public, and you can choose a level of participation that matches your interest and abilities. Breakthrough data from the Green Bank Telescope are now flowing to SETI@home, and everyone can help out with the analysis! SETI@home is one of the world's largest citizen science projects, and enables users to donate a portion of their home computers' resources to aiding in our data analysis."
Janos Haits

MARS Rover Virtual Reality Panoramic images - 360 degree QTVR Photos from panoramas.dk - 0 views

www.panoramas.dk/mars

mars panoramic images degree reality panoramas photos qtvr education science space Universe planetary astronomy

shared by Janos Haits on 05 Jun 13 - No Cached
  • Janos Haits on 05 Jun 13
     
    THE MARS PANORAMAS - Updated July 11 2012 Interactive panoramas from the Mars 1997 Pathfinder Mission, MER 2004 Missions Spirit and Opportunity Click on the Thumbnails below to view the interactive QuickTime Virtual Reality Panoramas in fullscreen."
Janos Haits

Live From Space Second Screen | National Geographic Channel - 2 views

livefromspace.com

national channel space screen astronomy Science universe planetary

shared by Janos Haits on 12 Mar 14 - No Cached
Linda Wise liked it
  • Janos Haits on 12 Mar 14
     
    "The International Space Station (ISS) orbits the earth at over 17,000 mph. See the world from the perspective of its astronauts and discover what's happening on the ground right now."
Todd Suomela

[0806.0377] A Hemispherical Power Asymmetry from Inflation - 0 views

arxiv.org/0806.0377

astronomy astrophysics observatory physics

shared by Todd Suomela on 13 Jun 08 - Cached
  • Todd Suomela on 13 Jun 08
     
    Measurements of temperature fluctuations by the Wilkinson Microwave Anisotropy Probe (WMAP) indicate that the fluctuation amplitude in one half of the sky differs from the amplitude in the other half. We show that such an asymmetry cannot be generated during single-field slow-roll inflation without violating constraints to the homogeneity of the Universe. In contrast, a multi-field inflationary theory, the curvaton model, can produce this power asymmetry without violating the homogeneity constraint. The mechanism requires the introduction of a large-amplitude superhorizon perturbation to the curvaton field, possibly a pre-inflationary remnant or a superhorizon curvaton-web structure. The model makes several predictions, including non-Gaussianity and modifications to the inflationary consistency relation, that will be tested with forthcoming CMB experiments.
Kalyan Roy

Why Are Quark Stars So Strange? : Discovery News - 1 views

news.discovery.com/...re-quark-stars-so-strange.html

Astronomy

shared by Kalyan Roy on 20 Jan 10 - Cached
  • First things first, neutron stars, quark stars and black holes are all born via the same mechanism: a supernova. But each of the three are progressively more massive, so they originate from supernovae produced by progressively more massive stars. So, what if a star exploded, producing something a little too massive to be called a neutron star? Well, neutron stars resist collapsing under their own gravitational pull by a characteristic of matter known as neutron degeneracy. This produces an outward force called neutron degeneracy pressure. What if the neutron star born after a supernova is too massive for this neutron degeneracy pressure to hold up against the neutron star's own gravity? In this case, it's up to the quarks that make up the neutrons to take over, preventing the body from collapsing any further. Single neutrons are composed of three quarks (two "down" quarks and one "up" quark). When quark degeneracy pressure kicks in, a quark star may be produced; the free "up" and "down" quarks get converted into "strange" quarks. Therefore, a quark star (also known as a "strange star") is made up of strange matter.
  • Using what we know from the Standard Model of particle physics, a massive quark star may have enough gravitational energy to start 'burning' strange matter. The quarks inside the core of the quark star may be abused so badly by gravitational pressure that the quarks will be converted into pure energy and neutrinos.
  • The fascinating thing with this scenario is that the quark star matter will be so dense that even the neutrinos cannot escape. However, this release of energy and generation of neutrinos creates an outward pressure countering the relentless inward gravitational pull.
  • ...2 more annotations...
  • Dai calls this extreme strange matter-burning quark star an "electroweak star"
  • Saving the best till last, the electroweak star's core would therefore be as extreme as the universe was only 10-10 seconds (that's 0.0000000001 seconds) after the Big Bang. These extreme objects would be like mini-Big Bang laboratories, maintaining a pressure where the electromagnetic and weak forces are so intertwined, they cannot be distinguished.
Sandra Flores

How can I shorten my Astro-Studies ? - 0 views

Do you have to study really five years physics to make astronomy or you can also directly available to study astronomy and astrophysics? Is it true that the lectures are in English?As a rule, no di...

started by Sandra Flores on 05 Jan 15 no follow-up yet
Sandra Flores

Strange stars on the heel - 0 views

Strange stars on the heelA new star strange lurks perhaps in our galaxy - and an astrophysicist at the Weizmann Institute is close on the track. Prof. Vladimir Usov from the Weizmann Institute...

started by Sandra Flores on 05 Jan 15 no follow-up yet
Sandra Flores

How can I shorten my Astro-Studies ? - 0 views

Do you have to study really five years physics to make astronomy or you can also directly available to study astronomy and astrophysics? Is it true that the lectures are in English?As a rule, no di...

started by Sandra Flores on 09 Jan 15 no follow-up yet
Sandra Flores

Strange stars on the heel - 0 views

Strange stars on the heelA new star strange lurks perhaps in our galaxy - and an astrophysicist at the Weizmann Institute is close on the track. Prof. Vladimir Usov from the Weizmann Institute...

started by Sandra Flores on 09 Jan 15 no follow-up yet
Sandra Flores

Only Noise ? - 0 views

Only noise instead of snowFrom Where did the water Came To Earth? Professor Frank believes it came from house-sized chunks of ice that occur from time immemorial in the atmosphere, leaving the burn...

started by Sandra Flores on 22 Jan 15 no follow-up yet
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