Blog Archives

This Is the First Color Image from the Surface of Venus

Color image data sent from the surface of Venus by the Soviet Venera-13 lander (Credit: NASA history office)

Color image data sent from the surface of Venus by the Soviet Venera-13 lander (Credit: NASA history office)

The surface of Venus is definitely no easy place to which to send a spacecraft. Crushing atmospheric pressures, powerful high-altitude winds amid caustic clouds of sulfuric acid, and temperatures that can soar above 880ºF (475ºC) make the next planet in a no-man’s-land for robotic spacecraft. But those challenges didn’t stop the Soviet space program from successfully putting several craft onto Venus’ surface in the 70s and early 80s, giving us our first views of its kiln-dried landscape.

Venera-3 became the fist spacecraft on the surface of another planet when it impacted Venus on March 1, 1966, but no data was returned. The next year Venera-4 was sent to Venus but was likely crushed by its atmosphere. Venera-7 became the first spacecraft to successfully soft-land on Venus on Dec. 15, 1970, sending back temperature data. Venera-8 landed on July 22, 1970, taking light measurements and confirming suitable levels for imaging. On Oct. 22, 1975, the Venera-9 lander returned the first image data from the surface of Venus before going out of range of the orbiting spacecraft 53 minutes later (and succumbing to harsh surface conditions after that) with Venera-10 landing three days later. Then, on March 1, 1982, Venera-13 landed on Venus, analyzing soil and capturing the first color images from the planet’s surface.

The image above is a section of a larger panorama. See the full image below:

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Latest Images of Ceres Show Its Bright Spot Is Actually Twins!

Image of Ceres captured by Dawn on Feb. 19, 2015.

Image of Ceres captured by Dawn on Feb. 19, 2015.

Here’s your weekly Ceres update! The dwarf planet’s features are coming into better and better focus for the approaching Dawn spacecraft, which will be captured by Ceres’ gravity on March 6. The image above is yet another “best-ever” of Ceres (as will be each one we see now), captured on Feb. 19, 2015, from a distance of about 29,000 miles (46,000 km).

This was one of a trio of images from Dawn released today. The others can be seen below, including one that shows the intriguing bright spot that has been observed for over a decade.

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MESSENGER Gets Up Close and Personal With Mercury

One of MESSENGER's highest-resolution images of Mercury's surface yet

One of MESSENGER’s highest-resolution images of Mercury’s surface yet

Mercury’s ready for its close-up, Mr. MESSENGER! At an incredible 5 meters per pixel, the image above is one of the highest-resolution images of Mercury’s surface ever captured. It was acquired on March 15 with the MESSENGER spacecraft’s MDIS (Mercury Dual Imaging System) instrument and shows an 8.3-km (5.2-mile) -wide section of the planet’s north polar region, speckled with small craters and softly rolling hills.

And, with a new low-altitude mission ahead, there’ll be plenty more like this — and likely even better — in the months ahead. Read the rest of this article here.

Image credit: NASA/Johns Hopkins University Applied Physics Laboratory/Carnegie Institution of Washington

Curiosity Spots an Unidentified Object on Mars

Is this the smallest UFO ever?

While scooping its first samples of Martian soil NASA’s Curiosity rover captured the image above, which shows what seems to be a small, seemingly metallic sliver or chip of… something… resting on the ground. Is it a piece of the rover? Or some other discarded fleck of the MSL descent mechanisms? Or perhaps an exotic Martian pebble of some sort? Nobody knows for sure yet, but it may just be the smallest UFO ever recorded (that’d be Unidentified Fallen Object…)

Read more here.

UPDATE: the object has been tentatively identified as a bit of plastic originating from the rover itself. Read more.

An Asteroid’s Amazing Technicolor Dream Coat

Vesta — the asteroid that was almost a planet — has its complex surface composition revealed in this animation made from images acquired by NASA’s Dawn spacecraft.

The video reveals the dappled, variegated surface of the giant asteroid Vesta, the second most massive object in the main asteroid belt. The animation drapes high-resolution false color images over a 3-D model of the Vesta terrain constructed from Dawn’s observations. This visualization enables a detailed view of the variation in the material properties of Vesta in the context of its topography.

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Mercury’s “Smooth” Plains

MESSENGER image of Mercury's "smooth" north polar region

Mercury has a vast region of smooth volcanic plains surrounding its northern polar region, wrapping over a third of the way around the planet. But even though the plains are called smooth, they are still characteristically rugged – made obvious in this narrow-angle camera image from MESSEGER acquired December 13.

Being an area close to Mercury’s pole, the incidence angle of sunlight highlights every crater, ridge and rise… showing that “smooth” on Mercury is definitely a relative term!

This image shows an area about 43 miles (70 km) across. Read more on the MESSENGER website here.

Credit: NASA/Johns Hopkins University Applied Physics Laboratory/Carnegie Institution of Washington


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