Science dealing with the study of space and celestial bodies. Can pertain to the composition, origin, motion, behavior or physical aspects of bodies in space as well as the practical applications of such information (ie: navigation).

learn more… | top users | synonyms

0
votes
0answers
36 views

Is the sun mostly made of iron? [migrated]

Professor Oliver Manuel, a professor of nuclear chemistry at the University of Missouri-Rolla, claims in the article Sun Is Made Of Iron, Not Hydrogen, Professor Says that iron, not hydrogen, is ...
3
votes
0answers
149 views

Is there a way to tell if the sun is rising or setting by looking at a picture and not knowing which coast it was taken at? [closed]

Looking through some pictures after watching "The Zero Theorem" it crossed my mind.
-3
votes
1answer
202 views

Does the Earth revolve around the sun? [closed]

Scientists like Ptolemy and and Aristotle argue that the Earth is at the centre of the universe, and that the sun and stars are fix on spheres that rotate about the Earth. However, other scientists ...
1
vote
0answers
125 views

Earth's distance from the sun affects nuclear medicine [closed]

Does the Earth's distance from the sun affect the efficacy of nuclear medicine?
-6
votes
1answer
224 views

Is Newton's first law not true beyond the edge of our universe? [closed]

To clear any confusion, we can say space is infinite. However, we can say that space has edges; these edges are the furthest bit of matter in a certain direction. Beyond that is matterless space - a ...
3
votes
1answer
262 views

Could meteors have been been formed with lead, and mislead radiometric dating?

The age of the Earth has been determined by radiometric dating of meteorites, by seeing how much uranium has decayed into lead. How do we know the meteor samples weren't formed with lead already in ...
5
votes
1answer
289 views

Do ancient Hindu texts predict the future expansion of the Sun?

This article on the Lovearth Network by Linda Johnsen, points out the correspondences between sacred Hindu texts and modern science. One particular section captured my interest greatly (emphasis ...
9
votes
1answer
344 views

Does NASA use whale oil in the Hubble Telescope?

The History Channel documentary America, the Story of Us states that NASA uses whale oil in the Hubble Space Telescope. Is there any solid evidence to confirm or dispute this claim?
3
votes
0answers
248 views

Can the events of the Ramayana and Mahabharata be astronomically dated to around 7300 BCE and 5561 BCE respectively?

The Ramayana is one of Hinduism's greatest epics. Nobody appears to know with certainty when the poem was composed or when the events in it occurred. However, while some scholars claim that the events ...
5
votes
2answers
838 views

Is comet ISON going to kill us?

I've just heard on the news that some comet named ISON is passing by the Sun. And they said that it will split and then it may hit us. They are citing Nostradamus prophecies and stuff. It appears that ...
2
votes
2answers
481 views

Has David Martines found a picture of a space-station on Mars?

From The Daily Mail: But now an American 'armchair astronaut' claims to have discovered a mysterious structure on the surface of the red planet - by looking on Google earth. David Martines, ...
4
votes
1answer
267 views

Is global temperature significantly affected by time of galactic year?

There is a claim that different patches of the galaxy have different climate effects due to variations in cosmic ray strength. I've occasionally heard this used to explain global warming but more ...
32
votes
2answers
2k views

Is it possible to officially Buy A Star?

There are plenty of companies around that let you purchase a star. They claim that the star will be named as you direct and they issue you a certificate of ownership. I realize that the T&C's for ...
9
votes
2answers
682 views

Did the Dogon tribes discover “Trans-Pluto”?

The performance artist Marina Abramović has said the following in a forum at the New York Public Library: In Africa you have Dogon tribes who worship Trans-Pluto, which is you know a small ...
3
votes
2answers
323 views

Can they calculate how close 2012 DA14 comes to Earth for the remainder of this century [closed]

... but couldn't tell until recently that Apophis won't hit Earth around 2030? What's the catch in these calculations? Are the numbers just so incredibly big that the 28,000 km distance in which 2012 ...
4
votes
4answers
490 views

Is there no link between the meteor that affected Russia and the asteroid 2012 DA14?

A large meteor or meteors entered the atmosphere near Russia's Chelyabinsk region hours before closest approach of asteroid 2012 DA14. Initial claims are that the two are unrelated; the above link ...
7
votes
1answer
393 views

Would we see a doomsday asteroid beforehand?

Forbes : We Probably Wouldn't Even See A Doomsday Asteroid Until It Was Too Late [...] So how much warning will we really have if an asteroid is about to hit Earth? The answer is pretty grim. ...
4
votes
1answer
2k views

VASIMR - Earth to Mars in 39 days? [closed]

The Variable Specific Impulse Magnetoplasma Rocket (VASIMR) is currently in development and is anticipated to be tested on the International Space Station in 2015. I'm a huge fan of expanding space ...
13
votes
1answer
732 views

Is the climber's head-lamp backstory for this long-exposure photo feasible?

I enjoyed reading the fascinating story of how a climber took an amazing long-exposure photo of his climb up, down and around a Peak District landmark. See: "Blazing a trail! Climber takes ...
11
votes
2answers
646 views

More stars visible from the Australian outback than anywhere else on earth?

An ad for Vodafone in Cairns airport, Australia, presents as a fact "worth ringing home about" that you can see more stars from the Australian outback than anywhere else on earth. While the ...
17
votes
1answer
14k views

Length of uncoiled human DNA

I recently came across this fact: There's enough DNA in the human body to stretch from the sun to Pluto and back. A couple of "Bollocks!" alarms began to chime in my head. While I expect that it ...
8
votes
1answer
2k views

Are there pine trees on Mars?

There's a UFO site which claims that the below image is captured by the Mars Global Surveyor and is of what looks like pine or other similar type of trees. I think this image is important because ...
8
votes
1answer
2k views

Is the pale blue dot Earth?

Is the pale blue dot Earth in the image taken by Voyager? What I'm wondering is, why is there no other thing visible in the frame(like sun, other planets etc.,). How is the camera able to capture only ...
5
votes
1answer
747 views

Will the Sun's magnetic activity disrupt electronics on Earth?

I recently came across a claim that the earth's geomagnetism will change and all the electronics devices will be disrupted due to the Sun's magnetic pole change, as described in this video. ...
5
votes
1answer
1k views

If gas expands then how are stars formed from collapse of gas and dust?

I do have a good understanding of how stars form. Mass exerts gravity and gases will collapse together and when the density crosses a certain limit, the fusion starts in the core. I was reading the ...
5
votes
1answer
832 views

Is this an image of the Milky Way galaxy? [closed]

In this picture, it says that the extent of human radio broadcast is this tiny blue dot about 200 lightyears in diameter: I find it hard to believe that we can take an image of the entire Milky Way ...
11
votes
1answer
736 views

Did Earth collide with a planet in its early days of formation?

I was watching documentary about Earth's formation National Geographic. They made this following statement. ......An astonishing event is about to take place.The Earth is on a collision course ...
8
votes
2answers
4k views

More stars than grains of sand?

This article http://news.bbc.co.uk/2/hi/science/nature/3085885.stm claims: Astronomers in Australia say there are 10 times more stars in the visible Universe than all the grains of sand on the ...
36
votes
2answers
6k views

Are nebulae colored?

The pictures of nebulae are always depicted as vividly colored and with a great variety of colors: Source Omega nebula Source Eagle nebula pillars According to the English wikipedia article on ...
3
votes
1answer
236 views

Kim Il-Sung's birthday present: a solar eclipse?

I heard this story, where they celebrated the birthday of the now defunct North Korean dictator Kim Il-sung in the 1970s and as a birthday present they created through some very complex artillery ...
10
votes
3answers
1k views

Did NASA's STEREO spacecraft capture an image of a cloaked UFO near Mercury?

Apparently on Dec. 1st a video camera on board a NASA satelite captured a "UFO" during a solar flare, near Mercury (skip ahead to 33 seconds for the relevant footage). Is it an alien spaceship? The ...
6
votes
3answers
1k views

Is the chance of dying from a car accident less than dying from an astronomical event?

On page 62 of David Deutsch's excellent The Beginning of Infinity he writes: a typical child born in the United States today is more likely to die as a result of an astronomical event than a ...
7
votes
1answer
235 views

Does low solar activity cause cold weather?

I'm in Ireland where a few papers have recently parrotted an independent body's assertion that we're heading for low solar activity and, accordingly, a very cold winter. The statement has been ...
4
votes
1answer
478 views

Could the moons of Jupiter support life?

I read a news article about a probe headed out to Jupiter. At the end of the article, it mentions a fear of "contaminating" the moons if it does not end it's life on Jupiter itself: Juno's ...
7
votes
1answer
478 views

How do we know the proportion of antimatter in the Universe?

From the Register, talking about the recent CERN antimatter experiment. I'm not concerned with the experiment itself, but rather this claim This, in turn, would help us understand how come our ...
14
votes
3answers
2k views

Did Bill Nye get booed by a room full of Texans for saying that the moon reflected the suns light?

Did Bill Nye get booed by a room full of Texans for saying that the moon reflected the Sun's light instead of coming from God? This is a well-known internet rumour. Is there any evidence ...
9
votes
1answer
29k views

Do solar eclipses cause harm to pregnant women?

There are so many articles in the internet that say going out during a solar eclipse causes harm to pregnant women. Is this claim true? Why did this myth come in the first place? This is from a BBC ...
6
votes
2answers
575 views

Would the approach of destroying an asteroid in the film “Armageddon” prevent a global catastrophe?

In the 1998 film Armageddon a group of oil rig workers lead by Bruce Willis are tasked with preventing a large asteroid from colliding with the Earth and wiping out civilization. They succeed by ...
8
votes
5answers
4k views

Is it possible to get to the power needed to thrust a rocket so that it can escape from earth?

Note: Any velocity mentioned in this question is the velocity relative to the earth. Warning: Base your answers on formal proof and facts, moon images aren't really science... According to ...
11
votes
2answers
2k views

Do solar storms affect human behaviour?

The other day, I found the following claim that solar flares cause a great increase in human agressiveness: Chizhevsky found after intense research that the rise and fall of solar ...
13
votes
2answers
323 views

Japan's earthquake and the Earth's axis

I've been hearing a lot lately about how Japan's massive earthquake moved the Earth or changed its axis by 1°-4°. I personally feel that this is not possible, but I don't have nearly enough knowledge ...
4
votes
1answer
571 views

Why are we able to see objects that are several light years away, but we've been unable to determine if there is one in our celestial backyard? [closed]

We've detected hundreds of planets outside of our own solar system, like the cluster around Gliese 581. Likewise, we're discovering distant brown dwarf stars quite quite frequently, such as the ...
15
votes
2answers
2k views

Have there been any credible reports of unidentified flying objects?

A unidentified flying object is just that—a flying object that has not been identified. There need not be evidence of alien hi-jinx. My criteria for a credible UFO report would include: ...