Search found 143 matches

by ErnieM
Mon Mar 25, 2013 5:50 pm
Forum: The Library: Information Desk and Educational Resources
Topic: Back hole in Cygnus X-I
Replies: 22
Views: 87944

Re: Back hole in Cygnus X-I

What if a massive star falls into a black hole? Will the black hole remain stable? What change will be seen in the black hole? Who the black will tackle the additional mass? http://www.youtube.com/watch?v=xp-8HysWkxw Watch to learn more about black holes. From Space Rip - Published on Sep 26, 2012.
by ErnieM
Mon Mar 25, 2013 5:36 pm
Forum: The Library: Information Desk and Educational Resources
Topic: Super Massive Black Hole(s)
Replies: 2
Views: 8699

Re: Super Massive Black Hole(s)

What happens when a black hole gets close to another black hole? Is there such a phenomenon as multiple black holes system? If black holes eventually eat each other, then one can imagine a single super massive black hole with two opposite super long and expansive jet streams. Is it inconceivable to...
by ErnieM
Sat Mar 23, 2013 2:26 pm
Forum: The Communications Center: Breaking Science News
Topic: Planck Universe: 13.81 billion years old
Replies: 21
Views: 4685

Re: Planck Universe: 13.81 billion years old

http://www.deepspace.ucsb.edu/wp-content/uploads/2010/08/CMB_2k-1024x517.jpg http://www.deepspace.ucsb.edu/wp-content/uploads/2013/03/planck3x3.jpg http://www.deepspace.ucsb.edu/wp-content/uploads/2013/03/Planck_Cosmic-recipe-pie-chart_v51-1024x723.jpg Watch the video simulation http://www.youtube....
by ErnieM
Fri Mar 15, 2013 8:57 pm
Forum: The Communications Center: Breaking Science News
Topic: JPL: Herschel Measures Dark Matter for Star-Forming Galaxies
Replies: 1
Views: 67915

Which Came First - Dark Matter or Gas Clouds?

From NASA - Herschel Measures Dark Matter Required for Star Forming Galaxies http://www.nasa.gov/home/hqnews/2011/feb/HQ-11-045_Herschel_Dark_Matter.html Giant clumps of dark matter act like gravitational wells that collect the gas and dust needed for making galaxies. When a mixture of gas and dust...
by ErnieM
Thu Mar 14, 2013 5:22 am
Forum: The Asterisk Café: Discuss Anything Astronomy Related
Topic: Size and Growth Rate Ratio: Galaxies vs Black Holes
Replies: 0
Views: 635

Size and Growth Rate Ratio: Galaxies vs Black Holes

http://www.nasa.gov/images/content/194195main_A-ssc2007-17a1-330.jpg NASA writes: Astronomers have unmasked hundreds of black holes hiding deep inside dusty galaxies billions of light-years away.... http://www.nasa.gov/mission_pages/spitzer/news/spitzer-20071025.html http://i.space.com/images/i/000...
by ErnieM
Thu Mar 07, 2013 3:47 pm
Forum: The Bridge: Discuss an Astronomy Picture of the Day
Topic: APOD: Tardigrade in Moss (2013 Mar 06)
Replies: 67
Views: 14540

Re: APOD: Tardigrade in Moss (2013 Mar 06)

Hotspot wrote: What is their known life span? From Slow Walkers: When environmental conditions start to deteriorate, tardigrades enter a latent state until conditions improve. A latent state is a state in which metabolism, growth and reproduction are reduced or cease temporarily while resistance to ...
by ErnieM
Thu Mar 07, 2013 2:29 pm
Forum: The Bridge: Discuss an Astronomy Picture of the Day
Topic: APOD: Tardigrade in Moss (2013 Mar 06)
Replies: 67
Views: 14540

Re: APOD: Tardigrade in Moss (2013 Mar 06)

I wonder if tardigrade are found to survive and thrive inside digestive organs of moss eating animals.
by ErnieM
Tue Mar 05, 2013 2:12 pm
Forum: The Bridge: Discuss an Astronomy Picture of the Day
Topic: APOD: Chelyabinsk Meteor Flash (2013 Feb 23)
Replies: 40
Views: 27504

Re: APOD: Chelyabinsk Meteor Flash (2013 Feb 23)

From NASA Near Earth Object Program Was the Chelyabinsk Fireball Related to the Close Approach of Asteroid 2012 DA14? Asteroid 2012 DA14 made a very close flyby of the Earth just over 16 hours after the Russian fireball event, passing within 27,700 km (17,200 miles) of the Earth's surface, but there...
by ErnieM
Sun Feb 24, 2013 5:48 am
Forum: The Bridge: Discuss an Astronomy Picture of the Day
Topic: APOD: M51: The Whirlpool Galaxy in Dust... (2013 Feb 24)
Replies: 26
Views: 6779

Re: APOD: M51: The Whirlpool Galaxy in Dust... (2013 Feb 24)

The January 25, 1997 APOD says M51 is 15 million light years distant. Here is the link : http://apod.nasa.gov/apod/ap970125.html
Today;s APOD says twice as far at 30 million light years. Has space expanded this much in 16 years?
by ErnieM
Sun Feb 03, 2013 2:59 pm
Forum: The Bridge: Discuss an Astronomy Picture of the Day
Topic: APOD: Herschel's Andromeda (2013 Feb 02)
Replies: 40
Views: 7630

Re: APOD: Herschel's Andromeda (2013 Feb 02)

The two arms protruding from the opposite ends of the galactic bar appears to me to be very loosely connected to the rest of the "rings and arcs" making up the bulk of the galactic disc. I suppose each of these "rings and arcs" represents past galaxy collisions. Just curious if s...
by ErnieM
Fri Jan 18, 2013 1:27 pm
Forum: The Bridge: Discuss an Astronomy Picture of the Day
Topic: APOD: Stickney Crater (2013 Jan 18)
Replies: 34
Views: 7438

Re: APOD: Stickney Crater (2013 Jan 18)

Escape velocity is much less in the Martian moons so more debris must be blown into space from craters like this falling into Earth. I wonder how many "Martian rocks" are "Martian moon rocks" instead.
by ErnieM
Sun Jan 13, 2013 2:46 am
Forum: The Asterisk Café: Discuss Anything Astronomy Related
Topic: Shapley SuperCluster
Replies: 7
Views: 2064

Re: Shapley SuperCluster

Ernie wrote: With all due respect, does any of the red shift galaxies observed to be moving away from us belong to the galaxy superclusters in this map? If none, then these prior observed red shift galaxies may be being pulled in towards their respective still to be discovered galaxy superclusters. ...
by ErnieM
Sat Jan 12, 2013 6:59 pm
Forum: The Asterisk Café: Discuss Anything Astronomy Related
Topic: Shapley SuperCluster
Replies: 7
Views: 2064

Gravity vs. Dark Matter

With all due respect, does any of the red shift galaxies observed to be moving away from us belong to the galaxy superclusters in this map? If none, then these prior observed red shift galaxies may be being pulled in towards their respective still to be discovered galaxy superclusters. If this is th...
by ErnieM
Sat Jan 12, 2013 6:11 pm
Forum: The Asterisk Café: Discuss Anything Astronomy Related
Topic: Shapley SuperCluster
Replies: 7
Views: 2064

Gravity vs Dark Energy

http://www.atlasoftheuniverse.com/superc/shapleymap.gif from http://www.atlasoftheuniverse.com/superc/shapley.html This map (which looks down onto the supergalactic plane) shows all of the major clusters of galaxies between us and the Shapley supercluster. Our Galaxy is located at the lower-left, a...
by ErnieM
Sat Jan 12, 2013 1:26 pm
Forum: The Asterisk Café: Discuss Anything Astronomy Related
Topic: Shapley SuperCluster
Replies: 7
Views: 2064

Shapley SuperCluster

I stumbled on this link: http://www.solstation.com/x-objects/greatatt.htm which says In late 2005, a team of astronomers engaged in a X-ray survey called the Clusters in the Zone of Avoidance (CIZA) project revealed that the Milky Way is not being drawn towards a concentration of mass called the Gre...
by ErnieM
Wed Dec 12, 2012 3:09 pm
Forum: The Asterisk Café: Discuss Anything Astronomy Related
Topic: Mayan Calendar - Era 2012 - Galactic Alignment
Replies: 84
Views: 14421

Re: Mayan Calendar - Era 2012 - Galactic Alignment

December 21, 2012 will come to pass as any ordinary day the same January 1, 2001 did. The only difference was big multinational corporations got sold on the idea that they could not afford to take the chance of not doing or appear to be not doing anything about the latter.
by ErnieM
Wed Nov 28, 2012 8:15 pm
Forum: The Bridge: Discuss an Astronomy Picture of the Day
Topic: APOD: The CMB Cold Spot (2011 Mar 21)
Replies: 57
Views: 11774

Re: APOD: The CMB Cold Spot (2011 Mar 21)

Chris wrote: It's just a physical structure. Its connection with the structure of the Universe is as irrelevant as the bubbles in a glass of soda are. No argument. The soda bubbles in a glass analogy has no place in cosmology discussion at all. This Wikipedia link even demonstrates that even the mea...
by ErnieM
Fri Nov 23, 2012 11:59 am
Forum: The Bridge: Discuss an Astronomy Picture of the Day
Topic: APOD: The CMB Cold Spot (2011 Mar 21)
Replies: 57
Views: 11774

Re: APOD: The CMB Cold Spot (2011 Mar 21)

Chris wrote: I'm not sure of your point. We live in houses, too, but that doesn't have any cosmological significance. This discussion is about the structure of space and the nature of the Universe, not local irrelevancies. The Milky Way also has two bubbles recently discovered and the same type of b...
by ErnieM
Tue Nov 13, 2012 2:42 pm
Forum: The Bridge: Discuss an Astronomy Picture of the Day
Topic: APOD: The CMB Cold Spot (2011 Mar 21)
Replies: 57
Views: 11774

Re: APOD: The CMB Cold Spot (2011 Mar 21)

Chris wrote: There are no bubbles. Every point in the Universe simply has its own observable universe. There's nothing special about any of them... in fact, they don't even have any physical reality. (3)Imagine a bunch of people standing around in a big field at night with lanterns. Each of them has...
by ErnieM
Fri Nov 02, 2012 1:19 pm
Forum: The Bridge: Discuss an Astronomy Picture of the Day
Topic: APOD: The Hubble Extreme Deep Field (2012 Oct 14)
Replies: 62
Views: 12624

Re: APOD: The Hubble Extreme Deep Field (2012 Oct 14)

Chris wrote: I'm having difficulty figuring out what you're doing here (what are "concurrent circles?) Oooops. I mean concentric circles. From Wikipedia: "Concentric objects share the same center, axis or origin with one inside the other. Circles, tubes, cylindrical shafts, disks, and sphe...
by ErnieM
Sun Oct 28, 2012 12:18 pm
Forum: The Bridge: Discuss an Astronomy Picture of the Day
Topic: APOD: The Hubble Extreme Deep Field (2012 Oct 14)
Replies: 62
Views: 12624

Re: APOD: The Hubble Extreme Deep Field (2012 Oct 14)

Crish wrote: No they aren't. The angles are identical. There's absolutely no way of telling that any expansion occurred by looking at the angular position of the dots. The only way to detect expansion is to measure the change in distance... something that we can't do in the case of the Universe, alt...
by ErnieM
Fri Oct 26, 2012 9:35 am
Forum: The Bridge: Discuss an Astronomy Picture of the Day
Topic: APOD: The Hubble Extreme Deep Field (2012 Oct 14)
Replies: 62
Views: 12624

Re: APOD: The Hubble Extreme Deep Field (2012 Oct 14)

Chris wrote: ErnieM wrote: No arguments when it comes to angular movement. Allow me to illustrate. Observation 1. Using a partially inflated balloon placed ten feet from me, I marked two dots one half inch apart. I inflated the balloon until the distance between the dots are two inches apart (a 2d r...
by ErnieM
Wed Oct 24, 2012 3:29 pm
Forum: The Bridge: Discuss an Astronomy Picture of the Day
Topic: APOD: The Hubble Extreme Deep Field (2012 Oct 14)
Replies: 62
Views: 12624

Re: APOD: The Hubble Extreme Deep Field (2012 Oct 14)

Chris wrote: You can wait until the end of time, and you'll never see the slightest angular movement between galaxies due to the expansion of space, because there is none. Put differently, the coordinates of galaxies on the sky are absolutely fixed in terms of cosmological expansion. No arguments wh...
by ErnieM
Sun Oct 21, 2012 12:41 pm
Forum: The Bridge: Discuss an Astronomy Picture of the Day
Topic: APOD: The Hubble Extreme Deep Field (2012 Oct 14)
Replies: 62
Views: 12624

Re: APOD: The Hubble Extreme Deep Field (2012 Oct 14)

Chris wrote: There is no "lateral" expansion as you describe. The angular position of an object on the sky does not change with time because of the expansion of the Universe (and in fact, we cannot see ordinary lateral motion between different bodies at cosmological distances because doing...
by ErnieM
Thu Oct 18, 2012 10:44 am
Forum: The Bridge: Discuss an Astronomy Picture of the Day
Topic: APOD: The Hubble Extreme Deep Field (2012 Oct 14)
Replies: 62
Views: 12624

Re: APOD: The Hubble Extreme Deep Field (2012 Oct 14)

ErnieM wrote: I vision the galaxies when the universe was only 1BLY old to be closer to each other and now have "moved away?" from each other and in our real time have "moved out" of the Hubble's line of site due to the expansion of space. Chris wrote: I'm not sure what you mean...