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NASA Selects Missions to Study Sun, its Effects on Space Weather

One of the selected missions will study how the Sun drives particles and energy into the solar system

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The launch date for the two missions is no later than August 2022, the US space agency said in a statement on Friday. Pixabay

NASA has selected two new missions to study the Sun and its dynamic effects on space weather.

The launch date for the two missions is no later than August 2022, the US space agency said in a statement on Friday.

One of the selected missions will study how the Sun drives particles and energy into the solar system and a second will study the Earth’s response.

“These missions will do big science, but they’re also special because they come in small packages, which means that we can launch them together and get more research for the price of a single launch,” said Thomas Zurbuchen, Associate Administrator for the Science Mission Directorate at NASA headquarters in Washington.

NASA, Missions, Sun
NASA has selected two new missions to study the Sun and its dynamic effects on space weather. Pixabay

The Sun generates a vast outpouring of solar particles known as the solar wind, which can create a dynamic system of radiation in space called space weather.

Near Earth, where such particles interact with our planet’s magnetic field, the space weather system can lead to profound impact on human interests, such as astronauts’ safety, radio communications, GPS signals and utility grids on the ground.

The more we understand what drives space weather and its interaction with the Earth and lunar systems, the more we can mitigate its effects – including safeguarding astronauts and technology crucial to NASA’s Artemis programme to the Moon.

One of the two missions that NASA has selected is the Polarimeter to Unify the Corona and Heliosphere, or PUNCH. This mission will focus directly on the Sun’s outer atmosphere, the corona, and how it generates the solar wind.

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The second mission is Tandem Reconnection and Cusp Electrodynamics Reconnaissance Satellites, or TRACERS. The TRACERS investigation was partially selected as a NASA-launched rideshare mission, meaning it will be launched as a secondary payload with PUNCH.

TRACERS will observe particles and fields at the Earth’s northern magnetic cusp region – the region encircling the Earth’s pole, where our planet’s magnetic field lines curve down towards the Earth, NASA said. (IANS)

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This NASA Scientist is so Excited about Mercury Transit. Here’s Why

The tiny planet traveled directly between Earth and the sun on Monday, creating a perfect alignment

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NASA, Scientist, Mercury
The planet Mercury is seen in silhouette, low center, from Washington, as it transits across the face of the Sun, Nov. 11, 2019. (Credit: NASA/Bill Ingalls). VOA

Stargazers witnessed a rare celestial event on Monday, as Mercury passed directly across the face of the sun.NASA

Mercury, the solar system’s smallest planet and closest to the sun, won’t make the next such transit until 2032.

The tiny planet traveled directly between Earth and the sun on Monday, creating a perfect alignment.

The best views of the event took place in North and South America, while viewers in Europe and Africa were able to see part of Mercury’s passage.

NASA, Scientist, Mercury
Mercury, the solar system’s smallest planet and closest to the sun, won’t make the next such transit until 2032. Pixabay

Stargazers had to use solar-filtered binoculars and telescopes to spot Mercury, which appeared as a small black dot on the face of the sun.

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For those who could not see the event directly, the U.S. Space agency, NASA, live-streamed images of the celestial transit, which took about five and a half hours. (VOA)