W3streams.com

Daily science, nature and space photos

PICTURE OF THE DAY
Science & Nature
Science picture of the day
Black hole binary News.science360.gov.org
4 Aug 2015

Full Text:

An artist's conception of a black hole binary in a heart of a quasar, with the data showing the periodic variability superposed. The central regions of many glittering galaxies, our own Milky Way included, harbor cores of impenetrable darkness—black holes with masses equivalent to millions, or even billions, of suns. What is more, these supermassive black holes and their host galaxies...




Holes in an iceberg News.science360.gov.org
3 Aug 2015

Full Text:

Interesting holes in an iceberg in Antarctica. The National Science Foundation runs the U.S. Antarctic Program (USAP). In addition to maintaining three U.S. research stations on the continent, USAP supports research projects in an array of scientific disciplines including, for example, aeronomy and astrophysics, biology and medicine, geology and geophysics, glaciology, and ocean and c...




Earth science picture of the day
Astronomical and Atomic Time Systems Epod.usra.edu
4 Aug 2015

Astronomical and Atomic Time Systems

Photographer: Mario Freitas
Summary Author: Mario Freitas
 
The above photo shows a subtle difference between the time that's based on the instantaneous position of the Sun in the sky and standard clock time. Notice the faded sundial on the school wall in the foreground and the clock in the background, on the top of a modern trade center in Curitiba, Brazil. This time difference occurs because of...




Sculpted Clouds and Crescent Moon Epod.usra.edu
3 Aug 2015

Vangoghcloudsfotolunar_low

Photographer: Alex Dantart Usón Summary Authors: Alex Dantart Usón; Jim Foster
Shown above amidst wavy clouds that look like they were painted by Van Gogh is a sliver of the Moon, as observed near my home in Zaragoza, Spain. Strong winds known locally as the cierzo, streaming over the Moncayo Mountains in the far background were responsible for the layered effect of the sky that fades from den...



APOD

Virgo Cluster Galaxies Apod.nasa.gov

Well over a thousand galaxies are known members of Well over a thousand galaxies are known members of





A Proton Arc Over Lake Superior Apod.nasa.gov

The setting had been picked out -- all that was needed was an aurora. The setting had been picked out -- all that was needed was an aurora.





Hubble picture of the day
Telescopes Team Up to Find Distant Uranus-Sized Planet Through Microlensing Hubblesite.org
30 Jul 2015

Get larger image formats

The majority of planets discovered outside our solar system orbit close to their parent stars because these planets are the easiest to find. But to fully understand how distant planetary systems are put together, astronomers must conduct a census of all the planets around a star. So they need to look farther away from the star-from about the distance of Jupiter...




Hubble Sees a 'Behemoth' Bleeding Atmosphere Around a Warm Neptune-Sized Exop... Hubblesite.org
24 Jun 2015

Get larger image formats

Astronomers using NASA's Hubble Space Telescope have discovered an immense cloud of hydrogen dubbed "The Behemoth" bleeding off a planet orbiting a nearby star. The enormous, comet-like feature is about 50 times the size of the parent star. The hydrogen is evaporating from a warm, Neptune-sized planet, due to extreme radiation from the star. A phenomenon this l...




Animal of the day
Northern Pudu - the World's Smallest Deer Thewebsiteofeverything.com
7 Jul 2015
The Northern Pudu (Pudu mephistophiles) is the world's smallest deer. This little inhabitant of the Andes Mountains weighs in at only 3 to 6 kg, or 7 to 13 pounds. The Northern Pudu lives and plays across Columbia, Ecuador, and Peru. They prefer to stay in the higher elevations of the Andes Mountain range. Most of them live at least 2000 meters above sea level. The climate here is a temperate r...



Guatemalan Black Howler Monkey Thewebsiteofeverything.com
3 Jul 2015
Guatemalan Black Howler MonkeyThe endangered Guatemalan Black Howler (Alouatta pigra) (sometimes called the Yucatan Howler or Yucatan Black Howler) is one of many species of howler monkey, which is what is known as a ‘New World’ monkey. Its range is throughout the Yucatan Peninsula, and includes the areas of Mexico, Belize, and of course Guatemala. The Guatemalan Black Howler prefers to live in very lush areas, mostly st...



Botany photo of the day
Asplenium scolopendrium BotanicalGarden.ubc.ca
4 Aug 2015
Asplenium scolopendrium

Walking through the University of British Columbia Botanical Garden's Physic Garden, I happened to spot a patch of Asplenium scolopendrium gleaming in the sunshine. The light was making the dark centipede-like pattern of the mature sori stand out against its leaves. I was glad that I managed to take a photo that captured the interplay of light, sori, and green leaf that I saw on that warm summe...




Thismia megalongensis BotanicalGarden.ubc.ca
31 Jul 2015




More pictures