News tagged with night
Electric Moon jolts the solar wind
(Phys.org) -- With the Moon as the most prominent object in the night sky and a major source of an invisible pull that creates ocean tides, many ancient cultures thought it could also affect our health or ...
Space & Earth / Space Exploration
May 30, 2012 |
4.7 / 5 (7) |
0
|
Researchers reveal unseen planet by its gravity
More than a 150 years ago, before Neptune was ever sighted in the night sky, French mathematician Urbain Le Verrier predicted the planet's existence based on small deviations in the motion of Uranus. In a ...
May 10, 2012 |
4.9 / 5 (14) |
0
|
Commercial spacecraft speeds toward space station
(AP) -- Opening a new, entrepreneurial era in spaceflight, a ship built by a billionaire businessman sped toward the International Space Station with a load of groceries and other supplies Tuesday after a ...
Space & Earth / Space Exploration
May 22, 2012 |
4.8 / 5 (4) |
5
Stunning Lyrid meteor over earth at night
(Phys.org) -- On the night of April 21, the 2012 Lyrid meteor shower peaked in the skies over Earth. While NASA allsky cameras were looking up at the night skies, astronaut Don Pettit aboard the International ...
Space & Earth / Space Exploration
May 21, 2012 |
5 / 5 (1) |
1
New generation of superlattice cameras add more 'color' to night vision
Recent breakthroughs have enabled scientists from the Northwestern University's Center for Quantum Devices to build cameras that can see more than one optical waveband or "color" in the dark. The semiconducting material used ...
Oct 20, 2011 |
4.9 / 5 (12) |
1
|
Calculating what's in the universe from the biggest color 3-D map
Since 2000, the three Sloan Digital Sky Surveys (SDSS I, II, III) have surveyed well over a quarter of the night sky and produced the biggest color map of the universe in three dimensions ever. Now scientists ...
Jan 11, 2012 |
4.9 / 5 (7) |
10
|
'Cambridge Nights': a late night show for scientists
(PhysOrg.com) -- While it’s not uncommon to see scientists on TV, most of the time it’s just for a few minutes on the news to comment on a recent event or major discovery. A new late night show called ...
Oct 31, 2011 |
4.9 / 5 (16) |
1
|
Scientists invent long-lasting, near infrared-emitting material
Materials that emit visible light after being exposed to sunlight are commonplace and can be found in everything from emergency signage to glow-in-the-dark stickers. But until now, scientists have had little ...
Nanotechnology / Nanomaterials
Nov 20, 2011 |
4.5 / 5 (26) |
10
|
World's largest 3.2 billion-pixel digital camera project passes critical milestone
A 3.2 billion-pixel digital camera designed by SLAC National Accelerator Laboratory is now one step closer to reality. The Large Synoptic Survey Telescope camera, which will capture the widest, fastest and ...
Apr 24, 2012 |
4.8 / 5 (17) |
4
|
Solar storm sparks dazzling northern lights
A storm from the broiling sun turned the chilly northernmost skies of Earth into an ever-changing and awe-provoking art show of northern lights on Tuesday.
Space & Earth / Space Exploration
Jan 25, 2012 |
5 / 5 (2) |
0
Too much light at night may lead to obesity, study finds
Persistent exposure to light at night may lead to weight gain, even without changing physical activity or eating more food, according to new research in mice.
Oct 11, 2010 |
5 / 5 (11) |
6
|
Astronomers unveil an amazing, interactive, 360-degree panoramic view of the entire night sky
(PhysOrg.com) -- The first of three images of ESO's GigaGalaxy Zoom project — a new magnificent 800-million-pixel panorama of the entire sky as seen from ESO's observing sites in Chile — has just been released ...
Sep 14, 2009 |
4.9 / 5 (14) |
2
How to see the best meteor showers of 2012: Tools, tips and 'save the dates'
(PhysOrg.com) -- Whether you're watching from a downtown area or the dark countryside, here are some tips to help you enjoy these celestial shows of shooting stars. Those streaks of light are really caused ...
Space & Earth / Space Exploration
Jan 02, 2012 |
4.5 / 5 (15) |
0
|
Researcher: Cell phones could double as night vision devices
(PhysOrg.com) -- Call it Nitelite: The newest app for cell phones might be night vision.
May 04, 2010 |
4.6 / 5 (14) |
10
|
New camouflage technology from BAE hides war machines
(PhysOrg.com) -- BAE Systems says it has a camouflage system that can render battle machines like tanks invisible or even seen as other objects in the immediate environment to protect against attack. The 'cloak' ...
Sep 07, 2011 |
4.7 / 5 (15) |
15
|
Night
Night or nighttime is the period of time when the sun is below the horizon. This occurs after dusk. The opposite of night is day (or "daytime" to distinguish it from "day" as used for a 24-hour period). The start and end times of night vary based on factors such as season, latitude, longitude and timezone.
At any given time, one side of the planet Earth is bathed in light from the Sun (the daytime) and the other side of the Earth is in the shadow caused by the Earth blocking the light of the sun. This shadow is what we call the darkness of night.
For more information about Night, read the full article at
Wikipedia.
This text uses material from Wikipedia and is available under the GNU Free Documentation License.
