Why is NASA sending rockets straight into the Northern Lights? Here's the reason the space agency is citing

NASA is launching rockets into the Northern Lights from Alaska to investigate why auroras have distinct movements such as flickering and pulsating.

NYT News Service
NASA is launching rockets into auroras to investigate the factors that contribute to their distinct movements. Alaska's Fairbanks In an effort to learn more about polar auroras, also referred to as the Northern Lights, NASA plans to launch rockets into the night sky over Alaska this week.


Facts Regarding the Northern Lights

Each aurora is distinct, much like a fingerprint or a snowflake. They take the form of ribbons of light that span the entire color spectrum. A one-time light show across the night sky is what each event is. Scientists don't know what causes the distinct movements of polar auroras, but they do know that they are caused by charged particles called solar flares that are released by the sun and interact with Earth's magnetic field.

How are NASA’s rockets studying the Northern Lights?

NASA scientists are specifically trying to figure out why some auroras pulsate, some flicker, and some seem to have holes in them.


Two imaginatively named missions are being flown by NASA's Goddard Space Flight Center from the Poker Flat Research Range in Fairbanks.

NASA has identified two different subtypes of aurora: "so-called fast-pulsating auroras, which flash on and off a few times a second, and the other for flickering auroras, which do so up to 15 times a second." The first mission, called "Ground Imaging to Rocket Investigation of Auroral Fast Features (GIRAFF)," is designed to launch rockets at these subtypes.

Instruments on each rocket will measure the collisions between electrons in the Earth's magnetosphere and electrons originating from solar flares.

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In an attempt to identify the circumstances under which auroras occur, a second mission will shoot rockets into the "holes" or dark areas in the auroras, as quoted in a report by Fox Weather.

The Black and Diffuse Aurora Science Surveyor is the name of the mission. NASA stated in a press release that its acronym will be left as an exercise to the reader.

According to NASA, Alaskan wind conditions will be crucial in determining the best time to launch.
According to the press release, "Both teams will track the auroras via ground-based cameras at the launch site and at the down-range observatory in Venetie, Alaska, about 130 miles to the northeast along the rockets’ trajectory." According to NASA, Aristotle provided one of the earliest scientific descriptions of auroras in the fourth century. The term "Aurora Borealis" is credited by some historians and scientists to astronomer Galileo.

FAQs

Why does NASA launch rockets into the Northern Lights?
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NASA is studying why auroras behave differently—some flicker, others pulsate, and some have "holes"—by measuring interactions between electrons from solar flares and the Earth's magnetosphere.

How will the rockets contribute to the study of auroras?

The rockets, launched from Alaska, are outfitted with instruments to measure electron collisions and track auroral movements using ground-based cameras as they travel.
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