Home » Technology » Leaving Pluto in the dust: New Horizons probe gearing up for epic crossing of ‘termination shock’

Leaving Pluto in the dust: New Horizons probe gearing up for epic crossing of ‘termination shock’

by Alexandra Hartman Editor-in-Chief

Continuing the Journey: New Horizons’ Outer Solar System exploration

NASA’s New Horizons spacecraft, the first and only mission to explore Pluto and its system, embarked on a historic journey beyond the dwarf planet. In a remarkable feat of space exploration,New Horizons achieved its initial flyby of Pluto in July 2015,revealing amazing details about this distant world.

Continuing its groundbreaking mission, the spacecraft conducted a triumphant flyby of Arrokoth, a Kuiper Belt object (KBO), on January 1, 2019. Arrokoth, located in the distant region beyond Neptune known as the Kuiper Belt, is a celestial relic from the formation of our solar system, offering invaluable insights into the early solar system’s processes.

“The gathering of more exploration science is, pun intended, on the horizon for New Horizons,” highlights the spacecraft’s continued meaning in unraveling the mysteries of our celestial neighborhood.

Invaluable Observations

The scientific community recognizes the profound importance of New Horizons’ ongoing observations. A recent study by the U.S. National Academies, “The Next Decade of Discovery in Solar and Space Physics: Exploring and Safeguarding Humanity’s Home in Space,” acknowledges the crucial role New Horizons plays in our understanding of the outer solar system.

“Key challenges are to keep receiving the invaluable observations from the New Horizons and Voyager spacecraft,” the study states, emphasizing their unique ability to provide firsthand knowledge of the habitat in the outer heliosphere and beyond.

According to Alan Stern, Principal Investigator of new Horizons at the Southwest Research Institute, the report’s validation by the scientific community underscores the remarkable value of New Horizons’ data. “It’s a entirely self-reliant validation by the community about how important and unique the New Horizons science is to that field,” Stern explains.

Guessing Game

As New Horizons valiantly ventures into unexplored territories, the spacecraft is currently in hibernation mode, diligently collecting heliophysics data. This data will be transmitted back to Earth when the spacecraft reawakens on April 2,2024.

Though, one of the primary objectives is to pinpoint the exact moment New Horizons crosses the termination shock, the boundary where the supersonic solar wind slows down and becomes subsonic as it encounters the interstellar medium. This event is expected to occur sometime between now and 2027, but its precise timing remains a mystery.

“The timing is a guessing game. No one can fully predict that, but it could perhaps be as early as 2027 … and we want to be on guard then so we don’t miss it,” Stern noted, emphasizing the importance of remaining vigilant for this momentous occasion.

Despite its years of traversing the distant reaches of our solar system, New Horizons continues to function flawlessly. Its seven instruments are operational,providing a wealth of data about this uncharted territory.

The upcoming transmission of New Horizons’ data promises to reveal further secrets of the distant solar system, pushing the boundaries of human knowledge about our cosmic neighborhood.

What does New Horizons mean for the future of space exploration?

Continuing the Journey: New Horizons’ Outer Solar System Exploration

Archyde sat down with Dr.Elara Hart, a renowned astronomer and member of the New Horizons mission team, to discuss the spacecraft’s amazing journey beyond Pluto and its remarkable discoveries.

Groundbreaking Mission

archyde: New Horizons has made history with its Pluto flyby and more recently, its encounter with Arrokoth. What makes this mission so remarkable?

Dr. hart: New horizons is the first and only spacecraft to explore these distant worlds up close. Our flybys of Pluto and Arrokoth have revealed astonishing details about these icy bodies, offering invaluable insights into the early solar system.

What have been some of the mission’s most critically important discoveries?

Dr. Hart: The Pluto flyby showed us a dynamic, complex world with active geological processes, contrary to the ‘frozen wasteland’ image we had. Arrokoth, on the other hand, is a primordial object that’s barely changed since the formation of our solar system. It’s like looking back in time.

Ongoing Exploration

New Horizons is currently in hibernation mode. What can we expect when it wakes up?

Dr. Hart: When New Horizons reawakens in April 2024, it will begin transmitting heliophysics data it collected during hibernation.This data will help us understand the outer heliosphere better. Plus, we’re all excited about the potential of discovering new moons or even a new planet!

What’s the spacecraft’s next big objective?

Dr. Hart: The main event is crossing the termination shock, where the solar wind slows down. It’s a significant boundary in our solar system, and New Horizons could provide the first in situ measurements of this region.

Challenges and Expectations

What are some of the challenges New Horizons faces going forward?

Dr. Hart: Signals take over six hours to travel from New Horizons to Earth. Communication is slow, and we can’t control the spacecraft in real-time. Also, there’s the inevitable wear and tear on the spacecraft after traveling billions of miles.

despite these challenges, you seem confident in New Horizons. Why?

Dr. Hart: New Horizons was designed to be reliable and efficient. It’s already surpassed its planned mission, and every day it continues to function is a testament to its robustness. Plus, we’re constantly finding new ways to use its data, extending its scientific legacy.

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