Wise Words for You

The wavemaker moon, Daphnis, is featured in this view, taken as NASA's Cassini spacecraft made one of its ring-grazing passes over the outer edges of Saturn's rings on Jan. 16, 2017. via NASA http://ift.tt/2jPxlwA

A grid of small polygons on the Martian rock surface near the right edge of this view may have originated as cracks in drying mud more than 3 billion years ago. via NASA http://ift.tt/2jzvy1d

Expedition 50 Commander Shane Kimbrough of NASA at work outside the International Space Station on Jan. 13, 2017, in a photo taken by fellow spacewalker Thomas Pesquet of ESA. The two astronauts successfully installed three new adapter plates and hooked up electrical connections for three of the six new lithium-ion batteries on the station. via NASA http://ift.tt/2iDoegW

This image of a crescent Jupiter and the iconic Great Red Spot was created by a citizen scientist (Roman Tkachenko) using data from Juno's JunoCam instrument. via NASA http://ift.tt/2iQA9sp

This image of a well-preserved unnamed elliptical crater in Terra Sabaea, is illustrative of the complexity of ejecta deposits forming as a by-product of the impact process that shapes much of the surface of Mars. via NASA http://ift.tt/2jct7C2

This image of a crescent Jupiter and the iconic Great Red Spot was created by a citizen scientist (Roman Tkachenko) using data from Juno's JunoCam instrument. via NASA http://ift.tt/2jIQYK5

NASA Astronaut Peggy Whitson's 7th Spacewalk via NASA http://ift.tt/2j1dn27

Expedition 50 Flight Engineer Thomas Pesquet of the European Space Agency photographed the Rocky Mountains from his vantage point in low Earth orbit aboard the International Space Station. He shared the image with his social media followers on Jan. 9, 2017, writing, "the Rocky mountains are a step too high – even for the clouds to cross." via NASA http://ift.tt/2j1assn

In an effort to improve fuel efficiency, NASA and the aircraft industry are rethinking aircraft design. via NASA http://ift.tt/2i907Go

Here is a view of Earth and its moon, as seen from Mars. It combines two images acquired on Nov. 20, 2016, by the HiRISE camera on NASA's Mars Reconnaissance Orbiter, with brightness adjusted separately for Earth and the moon to show details on both bodies. via NASA http://ift.tt/2jk2xr1

Astronomers have discovered what happens when the eruption from a supermassive black hole is swept up by the collision and merger of two galaxy clusters. via NASA http://ift.tt/2j8Bv1u

Impact craters expose the subsurface materials on the steep slopes of Mars. However, these slopes often experience rockfalls and debris avalanches that keep the surface clean of dust, revealing a variety of hues, like in this enhanced-color image from NASA's Mars Reconnaissance Orbiter, representing different rock types. via NASA http://ift.tt/2iDXvCA

Floating high above the hydrocarbon lakes, wispy clouds have finally started to return to Titan's northern latitudes. via NASA http://ift.tt/2hNAyzD

A satellite is ejected from the Japan Aerospace Exploration Agency (JAXA) Small Satellite Orbital Deployer on the International Space Station on Dec. 19, 2016. The satellite is actually two small satellites that, once at a safe distance from the station, separated from each other, but were still connected by a 100-meter-long Kevlar tether. via NASA http://ift.tt/2hU5LNj

This galaxy acts as an astronomical laser, beaming out microwave emission rather than visible light. via NASA http://ift.tt/2ihOnTW

Sunlight truly has come to Saturn's north pole. The whole northern region is bathed in sunlight in this view from late 2016, feeble though the light may be at Saturn's distant domain in the solar system. via NASA http://ift.tt/2iqTKzS

Just hours after the winter solstice, a mass of energetic particles from the Sun smashed into the magnetic field around Earth. The strong solar wind stream stirred up a display of northern lights over northern Canada. via NASA http://ift.tt/2hkyREI

Aboard the International Space Station, Expedition 50 Flight Engineer Peggy Whitson of NASA sent holiday greetings and festive imagery from the cupola on Dec. 18. via NASA http://ift.tt/2hk5FCF

This image from NASA's Cassini spacecraft is one of the highest-resolution views ever taken of Saturn's moon Pandora. Pandora (84 kilometers, or 52 miles across) orbits Saturn just outside the narrow F ring. via NASA http://ift.tt/2hKYWR9

This week in 1968, Apollo 8, the first crewed Saturn V launched from NASA's Kennedy Space Center on Dec. 21, 1968. Here, the S-IC stage is being erected for final assembly of the Saturn V launch vehicle in Kennedy's Vehicle Assembly Building. via NASA http://ift.tt/2i1MytA