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Images of the Day

A Cosmic Hurricane

The giant planet Saturn is mostly a gigantic ball of...


Swiss Cheese

Like Earth, Mars has concentrations of water ice at both...


Saharan Sand Sea

More dust blows out of the Sahara Desert and into the...

Solar System

Mount Pinatubo Philippines

This image from the Sentinel-1A radar satellite on 6 June...


Rud-e-Gaz and Rud-e-Hara wetlands

This image over a remote area in southern Iran was...


Dasht-e Lut desert detail

Wind-carved ridges and furrows in southeast Iran’s...

Human Exploration

ISS024-E-016346

(16 Aug. 2010) --- NASA astronaut Doug Wheelock,...


ISS024-E-016332

(16 Aug. 2010) --- NASA astronauts Tracy Caldwell Dyson...


ISS024-E-016324

(16 Aug. 2010) --- NASA astronauts Tracy Caldwell Dyson...

Science

Stem cells grow on 3-D substrates

This 3-D traction force microscopy image shows where and...


Nanoparticle opens door to clean-energy alternatives

Cheaper, clean-energy technologies could be made possible...


Oldest primate skeleton Image 2

An artist's conception of what the recently discovered...

Return to Flight

Flight Suit Demonstration

An attendee at the NASA Social at Dryden Flight Research...


NASA Pilot Jim Less

This is NASA pilot Jim Less signing autographs at the...


Mark Pestana

NASA pilot Mark Pestana speaks to attendees of the NASA...

Wallpapers

Strait of Gibraltar Spain

The Strait of Gibraltar is the main feature on this...


Southern Florida Cuba and the Bahamas

The shallow blue waters of the Bahamas as seen from...


Paris France

The City of Light, Paris is centered on this Medium...

Telescopes

Galactic Pyrotechnics on Display

A galaxy about 23 million light-years away is the site of...


I Spy a Little Asteroid With My Infrared Eye

This image of asteroid 2011 MD was taken by NASA's...


Galaxy Cluster SDSS J15313414

This is a Hubble Space Telescope photograph of a...

Robotic Exploration


Peak-a-boo Eminescu

Release Date: July 14, 2014 Topics: Albedo Contrasts,...


Crater on a Ridge

Release Date: July 11, 2014 Topics: Highest Resolution/...

Misc

CES Car Cameras

GoPro giving attendees a look at what its product line is...


ESPN 3D At CES

Boxer "Dr. Drain" making his professional debut on ESPN...


Boxing At CES

Two men slugged it out on ESPN 3D at the 2012...

Word of the Day
omphalos
  • The navel or umbilicus.
  • In Greek archaeology: A central boss, as on a shield, a bowl, etc.
  • A sacred stone in the temple of Apollo at Delphi, believed by the Greeks to mark the 'navel' or exact center-point of the earth.
'Omphalos' comes from the ancient Greek.
Related
Quote of the Day
There is a single light of science, and to brighten it anywhere is to brighten it everywhere.

- Isaac Asimov
Today in History