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Flower-shaped starshade might help detect Earth-like planets

Payback says...

"that allows a telescope to photograph planets from 50,000 kilometers away"

The Grammar Nazi emailed me and said that although he understands what you were trying to say, you got it wrong.

ALMA - World's Most Complex Ground-Based Observatory

ALMA - World's Most Complex Ground-Based Observatory

ALMA - World's Most Complex Ground-Based Observatory

siftbot says...

This video has been nominated as a duplicate of this video by eric3579. If this nomination is seconded with *isdupe, the video will be killed and its votes transferred to the original.

Moon Saturn Occultation - 22 Feb 2014

deathcow says...

Saturn has some of the highest contrast details of any planet, it really gives an effect of being a cutout or sticker. This is a very common reaction from public viewings on Saturn. People will look for stickers on the other end of the telescope. I have used some really high end refractors where Saturn color is subtle, can look almost paper white and pastels, etched with details.

poolcleaner said:

The first time I looked at Saturn through a telescope I was struck by the fact that at this magnitude it looks like an icon of Saturn cut out of paper, not the actual Saturn.

Moon Saturn Occultation - 22 Feb 2014

Moon Saturn Occultation - 22 Feb 2014

poolcleaner says...

The first time I looked at Saturn through a telescope I was struck by the fact that at this magnitude it looks like an icon of Saturn cut out of paper, not the actual Saturn.

oritteropo (Member Profile)

deathcow (Member Profile)

Why The Full Moon is Better in Winter - MinutePhysics

coolhund says...

Winter (and its full moon) also means that you cant watch stars or planets nearly as well, since the light of the moon is interfering a lot. Also the cold weather is bad for telescope mirrors because they will fog up or even freeze over.

Not to mention that I like winter because its so dark and making siting at home very cozy. Having a full moon all night long destroys that feeling.

The Solar System -- our home in space

deathcow says...

I have seen one of the tiny moons of Mars (Deimos) from my front deck through a 7" refractor telescope. That moon is 9 miles wide and I saw it when it was about 47,000,000 miles away.

Raffaello D'Andrea: The athletic power of quadcopters

chingalera says...

Use these to get to all those caches of cameras and watches those pesky temple monkeys steal from tourists
Cure barking dogs
Peeping-Toms in NYC ditch their hi-rise telescopes for octorotors with advanced imagery GPS powered by GooglARPA, a Division of Raytheon.
Who needs private detectives any longer?

insane camera gear used to photograph early NASA launches

dag (Member Profile)

Neil deGrasse Tyson: We Live in a Cosmic Shooting Gallery

dandyman says...

Not according to David Thompson, a NASA astrophysicist and deputy project director on the Fermi Gamma-ray Space Telescope who compares the risk to Earth from a future gamma-ray burst to "the danger I might face if I found a polar bear in my closet in Bowie, Maryland. It could happen, but it is so unlikely that it is not worth worrying about."

Payback said:

There's a greater chance that one (or more) of the stars within about 6000 light years or so could give off a gamma ray burst that would wipe out any life in the solar system, no matter where we hid it. It's been postulated the previous-to-the-Yucatan-asteroid large scale die-offs could have happened due to GRB.



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