Tuesday September 17, 2019
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Curiosity Rover of NASA Snaps its Last Selfie on Martian Ridge

Curiosity, which landed on Mars in 2012, was designed to assess whether Mars ever had an environment able to support small life forms called microbes

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The rover is currently keeping its
The rover is currently keeping its "eyes" on a dust event that had gone global by June 20. Flickr

After spending more than a year on a twisting ridge on Mars, NASA’s Curiosity rover has snapped its last selfie as it moves on to new sights on the Red Planet.

“Curiosity rover has taken its last selfie on the Vera Rubin Ridge and descended toward a clay region of Mount Sharp. The twisting ridge on Mars has been the rover’s home for more than a year, providing scientists with new samples and new questions to puzzle over,” NASA said in a statement on Monday.

On January 15, Curiosity used its Mars Hand Lens Imager (MAHLI) camera on the end of its robotic arm to take a series of 57 pictures, which were stitched together into the selfie.

The images feature a location on the ridge called Rock Hall, which the rover drilled on December 15.

The Rock Hall drill hole is visible to the lower left of the rover; the scene is dustier than usual at this time of the year due to a regional dust storm.

TESS, rover, opportunity
NASA Curiosity rover has completed 6 years on Mars. Pixabay

Curiosity has been exploring the ridge since September 2017.

It is now heading into the “clay-bearing unit”, which sits in a trough just south of the ridge.

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Clay minerals in this unit may hold more clues about the ancient lakes that helped form the lower levels on Mount Sharp, NASA said.

Curiosity, which landed on Mars in 2012, was designed to assess whether Mars ever had an environment able to support small life forms called microbes. In other words, its mission is to determine the planet’s “habitability”. (IANS)

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2 Big Asteroids Flying by Earth Pose no Risk: NASA

At the start of 2019, the number of discovered NEOs totaled more than 19,000, and it has since surpassed 20,000. An average of 30 new discoveries are added each week, NASA said

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NASA Headquarter in USA, VOA

NASA has ruled that the pair of asteroids flying by Earth this weekend could pose a threat to our planet.

“These asteroids have been well observed – once since 2000 and the other since 2010 – and their orbits are very well known,” said NASA’s Planetary Defence Officer Lindley Johnson.

“Both of these asteroids are passing at about 14 lunar distances from the Earth, or about 3.5 million miles away, but small asteroids pass by Earth this close all the time,” Johnson said.

Near-Earth asteroid 2010 C01, estimated to be 120 to 260 metres in size, safely passed Earth at 3.42 a.m. on Saturday. The second object, 2000 QW7 is estimated to be 290 to 650 metres in size will pass later at 11.54 p.m. on Saturday.

NASA
Earth’s view from moon’s surface. Pixabay

Near-Earth objects (NEOs) are asteroids and comets that orbit the Sun, but their orbits bring them into Earth’s neighborhood – within 30 million miles of Earth’s orbit.

These objects are relatively unchanged remnant debris from the solar system’s formation some 4.6 billion years ago.

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Most of the rocky asteroids originally formed in the warmer inner solar system between the orbits of Mars and Jupiter, while comets, composed mostly of water ice with embedded dust particles, formed in the cold outer solar system.

At the start of 2019, the number of discovered NEOs totaled more than 19,000, and it has since surpassed 20,000. An average of 30 new discoveries are added each week, NASA said. (IANS)