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Space News and Discussions

space exploration aerospace engineering astronomy NASA SpaceX interstellar telescopes satellites Mars space

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4110 replies to this topic

#21
Craven

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Nice news. Too bad we can't have electric propulsion without propellant. Seems like for a long time we'll have to carry lots of fuel around.
"I walk alone and do no evil, having only a few wishes, just like an elephant in the forest."

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#22
Time_Traveller

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Venus springs ozone layer surprise

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Scientists have discovered that Venus has an ozone layer.


From http://www.bbc.co.uk...onment-15203281

How interesting how Venus has now been found to have an ozone layer, this could now help astronomers refine their search for life on other planets.
I want to go ahead of Father Time with a scythe of my own.

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#23
mic of orion

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Hidden Alien Planets Discovered in Old Hubble Telescope Data

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http://www.space.com...ubble-data.html
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#24
OrbitalResonance

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Paper describing exoplanets around nearby stars
http://arxiv.org/PS_...1108.3447v3.pdf

Paper invetigating what earth may have looked through time and how that may help the exoplanet search

http://arxiv.org/PS_...1110.1340v1.pdf
  • mic of orion likes this

We make our world significant by the courage of our questions and the depth of our answers. - Carl Sagan


#25
mic of orion

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Secretive X-37B US Space Plane Could Evolve to Carry Astronauts

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http://www.space.com...astronauts.html
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#26
OrbitalResonance

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HR 8210 or IK Pegasi is probably the most dangerous star in our stellar neighborhood. It is a narrow double made of a Delta Scuti star (A) and a very big white dwarf (B).

Their separation from each other is too big for an interchange of matter. But this will change as soon as the A-star starts to expand to become a red giant. Then it will nearly reach the orbit of the white dwarf and this will suck off the hull of the red one. Thereby the white dwarf will soon exceed the Chandrasekhar limit of 1.44 solar masses.

It is quite certain that HR 8210 will explode as a type Ia supernova some time in the future. Maybe in 10,000 years, but more likely in several million years. Hopefully it won’t be too soon and hopefully then the star will be much further away. Because an Ia supernova in a distance of 150 light-years could cause some serious problems for life on Earth.

http://jumk.de/astro...s/hr-8210.shtml

We make our world significant by the courage of our questions and the depth of our answers. - Carl Sagan


#27
mic of orion

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^^ hopefully it won't happen any time soon, in 10 000 years time star will be around 180-200 light years away, still quite close (it all depends if angle of potential gamma ray bursts and if earth is in path) but with in next million years time star would have moved away sufficiently enough for star to pose no danger for life on earth.
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They that can give up essential liberty to purchase a little temporary safety, deserve neither liberty nor safety.

#28
Hogbobson

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^ Meh, if it explodes today, we're screwed. If it explodes in a thousand years, we will be ready. If it explodes in 10000 years, who says we will be around Earth (or even be around) to care?
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#29
Craven

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http://io9.com/58481...hes-121000-feet OK so this is $5k. So I'd say it's perfectly reasonable that you can get small sattelite to LEO with $10k. With such low cost I bet US army probably can send houndreds of those, only with small batteries to get pics and shit and then let them burn in atmosphere. Impressive.
"I walk alone and do no evil, having only a few wishes, just like an elephant in the forest."

"Laugh, and the world laughs with you. Weep, and you weep alone."

#30
mic of orion

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Planet Uranus Got Sideways Tilt From Multiple Impacts

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http://www.space.com/13231-planet-uranus-knocked-sideways-impacts.html
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It's dangerous to be right, when your government is wrong.
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#31
Logically Irrational

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NASA-backed space taxi to fly in test next summer

http://www.reuters.c...E79A63J20111011

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#32
Logically Irrational

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NASA Releases New Interactive Space Communications Game

http://www.marketwat...game-2011-10-11
Ph'nglui mglw'nafh Cthulhu R'lyeh wgah'nagl fhtagn!

#33
mic of orion

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Rogue Failed Star Is One of Smallest Ever Seen

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http://www.space.com/13253-tiny-rogue-failed-star-brown-dwarf.html
It's dangerous to be right, when your government is wrong.
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#34
Time_Traveller

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Nasa Gives Glimpse Into Heart Of Milky Way

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A new image taken by the Hubble Space Telescope reveals swirls of super-hot gas and previously undiscovered stars at the centre of our galaxy.


Fascinating how stars can be in the centre of our galaxy with all that super-hot gas.
I want to go ahead of Father Time with a scythe of my own.

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#35
Time_Traveller

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I will not conform my space posts to this thread. (there are not enough posts on this forum!)

Anyway, i will gladly talk in this thread about things that do not warrant their own thread.

The logical choice is Alpha Centauri, but we have barnards star, wolf 359, lalande 2215.

We also have Sirius, Tau Ceti and Epsilon Eridani at a little bit further distances.


Well in Star Trek and Doctor Who's History, Mankind went to Alpha Centuri first i think. So why can't we in real life go there first.

Edited by Time_Traveller, 13 October 2011 - 09:09 AM.

I want to go ahead of Father Time with a scythe of my own.

H. G. Wells

#36
mic of orion

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Asteroid Near Earth Discovered by Amateur Astronomers

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http://www.space.com...2011-sf108.html
It's dangerous to be right, when your government is wrong.
They that can give up essential liberty to purchase a little temporary safety, deserve neither liberty nor safety.

#37
mic of orion

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Warped Galaxies Reveal Signs of Universe's Hidden Dark Matter

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http://www.space.com...bble-photo.html
It's dangerous to be right, when your government is wrong.
They that can give up essential liberty to purchase a little temporary safety, deserve neither liberty nor safety.

#38
Craven

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https://www.facebook.com/SaveJWST - hey guys like this page. I guess it won't help much but it's not a big deal. It would really be a disaster if JWST stayed on ground.
"I walk alone and do no evil, having only a few wishes, just like an elephant in the forest."

"Laugh, and the world laughs with you. Weep, and you weep alone."

#39
Time_Traveller

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EDRS, the future data highway in space

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Astrium, Europe's leading space company, will partner with the European Space Agency (ESA) to design, deliver and operate the European Data Relay System (EDRS).


From http://www.spacedail..._space_999.html


Wow this should be good and EDRS will launch at the end of 2014.
I want to go ahead of Father Time with a scythe of my own.

H. G. Wells

#40
OrbitalResonance

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Cool Art I found

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We make our world significant by the courage of our questions and the depth of our answers. - Carl Sagan






Also tagged with one or more of these keywords: space exploration, aerospace engineering, astronomy, NASA, SpaceX, interstellar, telescopes, satellites, Mars, space

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