Earth 1, asteroids 0: The next generation of planetary defense takes shape at JPL

Los Angeles Times - Mar 26th, 2025
Open on Los Angeles Times

NASA is embarking on a crucial mission to detect potentially dangerous asteroids in our solar system with the construction of the Near-Earth Object (NEO) Surveyor. This $1.4-billion infrared telescope is designed to identify asteroids and comets that could pose catastrophic threats to Earth. Led by Amy Mainzer, a UCLA professor of planetary science, the mission aims to catalog 90% of near-Earth objects larger than 140 meters, fulfilling a 2005 congressional mandate. The NEO Surveyor, set to launch in 2027, will significantly enhance our ability to track and potentially deflect these celestial threats, ensuring the safety of our planet.

The importance of the NEO Surveyor mission cannot be overstated, as it seeks to prevent devastating impacts like the one that caused the extinction of the dinosaurs 66 million years ago. By positioning the telescope at the first Lagrange point, astronomers will gain an unprecedented view of the asteroids circling Earth. As technology advances, we have greater opportunities to avert disasters through early detection and mitigation strategies. Techniques like deflection and trajectory alteration, proven effective by NASA's DART mission, offer hope for safeguarding humanity. The NEO Surveyor underscores the need for preparedness and proactive measures in planetary defense.

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RATING

7.6
Fair Story
Consider it well-founded

The article provides a well-rounded and informative overview of the potential threats posed by asteroids and the efforts to detect and mitigate these risks through NASA's NEO Surveyor mission. It effectively communicates complex scientific concepts in an accessible manner, supported by credible expert insights. However, there are minor discrepancies in the reported cost and launch date of the mission, which could benefit from clarification. The piece could further enhance its impact and engagement by exploring alternative perspectives, potential controversies, and providing more explicit source references. Overall, it succeeds in raising awareness about an important scientific and public safety issue while maintaining clarity and readability.

RATING DETAILS

8
Accuracy

The article accurately discusses the potential threat posed by near-Earth objects (NEOs) and the efforts to track them through NASA's NEO Surveyor mission. It correctly states the mission's goal to identify a significant portion of these asteroids, aligning with NASA's objectives. However, there is a discrepancy in the reported cost of the mission; the article mentions $1.4 billion, while other sources suggest a range between $500 million and $600 million. Additionally, the specified launch date of September 13, 2027, differs from other reports that indicate a range from 2026 to June 2028. These inconsistencies could affect the overall accuracy score, but the core facts about the mission and its purpose are well-supported by credible sources.

7
Balance

The article provides a balanced view of the potential dangers posed by asteroids and the scientific efforts to mitigate these risks. It includes perspectives from experts like Amy Mainzer and Kathryn Kumamoto, offering insights into both the threat and the technological responses. However, the piece could benefit from additional viewpoints, such as potential criticisms of the NEO Surveyor mission or alternative approaches to asteroid tracking and deflection. By focusing primarily on NASA's efforts, it might overlook other international initiatives or private sector contributions to planetary defense.

9
Clarity

The article is well-written, with clear language and a logical flow that makes complex scientific concepts accessible to a general audience. It effectively explains the nature of asteroids, the goals of the NEO Surveyor mission, and the potential impact of asteroid collisions. The use of analogies, such as comparing asteroids to 'construction debris,' helps readers grasp the information quickly. The article maintains a neutral tone, focusing on factual reporting rather than sensationalism.

8
Source quality

The article cites credible sources, including NASA and experts in planetary science, which enhances its reliability. Amy Mainzer and Kathryn Kumamoto are well-regarded figures in their fields, lending authority to the claims made. However, the article could improve by providing more explicit citations or references to studies and data that support the statistical models and cost estimates mentioned. This would strengthen the article's foundation and offer readers more avenues for further exploration.

6
Transparency

While the article clearly outlines the mission's objectives and the potential risks posed by asteroids, it lacks detailed transparency regarding its sources and methodology. For instance, it does not specify where the cost figures or statistical models originate. Providing more explicit references or links to primary sources and data would enhance transparency and allow readers to verify the information independently. Additionally, disclosing any potential conflicts of interest or funding sources for the experts quoted would add to the article's credibility.

Sources

  1. https://nextspaceflight.com/launches/details/7788
  2. https://en.wikipedia.org/wiki/NEO_Surveyor
  3. https://lasp.colorado.edu/missions/neo-surveyor/
  4. https://www.planetary.org/space-missions/neosm
  5. https://www.ipac.caltech.edu/project/neo-surveyor