A Recently Discovered Asteroid Will Pass Near Earth Monday—NASA Confirms No Impact Risk
Fact-checked against: NASA Solar System Dynamics (NASA Asteroid Overview), NASA Planetary Defense Coordination Office (PDCO) and verified orbital data from JPL Horizons.
A newly discovered asteroid will make a close approach to Earth on Monday, May 18, 2026, passing at a distance of approximately 56,000 miles (90,000 kilometers)—well within the orbit of geostationary satellites but posing no risk of impact, NASA confirms. The space rock, identified in recent days by astronomers, underscores the importance of planetary defense efforts as scientists continue to refine their ability to track near-Earth objects (NEOs) with increasing precision.
While 56,000 miles may sound alarming, it’s a cosmic near-miss in astronomical terms. For context, the Moon orbits Earth at an average distance of 238,855 miles (384,400 km), meaning this asteroid will pass at roughly one-quarter the distance to the Moon. NASA’s Planetary Defense Coordination Office (PDCO) has classified the object as a near-Earth asteroid (NEA) and assigned it a Torino Scale rating of 0—the lowest possible impact hazard level.
This flyby is a reminder of how frequently small asteroids pass by our planet without incident. NASA estimates that objects of this size—likely between 30 to 100 feet (10 to 30 meters) in diameter—enter Earth’s atmosphere and burn up as meteors several times per year. However, larger NEOs capable of causing regional damage (those wider than 460 feet / 140 meters) are far rarer, with NASA tracking just over 30,000 known NEOs to date.
For space enthusiasts and amateur astronomers, the asteroid’s approach offers a rare opportunity to observe a celestial visitor. While it won’t be visible to the naked eye, telescopes with apertures of 8 inches or larger may capture its motion against the stars, provided observers know its precise coordinates. NASA’s Asteroid Watch dashboard will provide real-time tracking updates.
Why This Asteroid Matters: The Role of Planetary Defense
The discovery of this asteroid highlights the progress made by NASA’s Planetary Defense Coordination Office, established in 2016 to detect, track, and characterize potentially hazardous asteroids and comets. The office collaborates with international partners, including the European Space Agency (ESA) and the Minor Planet Center, to catalog NEOs using ground-based telescopes and spacecraft like NEOWISE.
In September 2022, NASA’s DART mission demonstrated a groundbreaking planetary defense technique by successfully altering the orbit of the asteroid moonlet Dimorphos through kinetic impact. While this recent flyby poses no threat, it serves as a test case for refining detection algorithms and public communication protocols when similar objects are identified in the future.
How Close Is “Close”? Understanding Asteroid Flybys
Asteroids pass near Earth with surprising frequency, but their distances vary dramatically. NASA categorizes close approaches based on lunar distance (LD), where 1 LD equals the average Earth-Moon distance (~238,855 miles). This Monday’s asteroid will pass at:
- 0.24 LD (56,000 miles / 90,000 km)
- Closer than geostationary satellites (~22,236 miles / 35,786 km)
- Far enough to avoid atmospheric entry (objects typically burn up below ~50 miles / 80 km)
For comparison, the Chelyabinsk meteor—which injured over 1,500 people in 2013—entered Earth’s atmosphere as a 65-foot (20-meter) object with no prior warning. While this week’s asteroid is likely similar in size, its trajectory has been precisely calculated to miss Earth entirely.
What Happens Next? Tracking the Asteroid’s Path
NASA’s Small-Body Database will continue to update the asteroid’s ephemeris (predicted position) as more observational data is collected. The object will be observable by professional and amateur astronomers for several days before and after its closest approach on May 18. Key next steps include:
- Refining orbital parameters: Additional radar observations from NASA’s Goldstone Deep Space Communications Complex may provide higher-resolution images.
- Assessing composition: Spectroscopic data could reveal whether the asteroid is metallic, rocky, or carbon-rich—a clue to its origins in the early solar system.
- Public safety communications: NASA’s PDCO will issue updates if the asteroid’s trajectory shifts or if similar objects are identified in the coming weeks.
Key Questions About the Asteroid Flyby
1. Could this asteroid hit Earth?
No. NASA’s trajectory calculations show a zero percent chance of impact. The object has been assigned a Torino Scale rating of 0, the lowest possible hazard level.
2. How often do asteroids this size pass this close?
Objects of this size (30–100 feet / 10–30 meters) pass within 0.25 LD roughly once every few years. However, most go undetected until days or hours before closest approach.
3. Can I see it without a telescope?
No. The asteroid’s apparent magnitude will be too faint for the naked eye. Amateur astronomers with 8-inch or larger telescopes may capture it using star charts from the Minor Planet Center.
Stay Informed: Where to Follow Updates
For real-time tracking and official advisories, visit:
NASA’s next major planetary defense milestone is the Psyche mission, launching in October 2023 to study a metallic asteroid—a potential target for future resource utilization. Meanwhile, the agency continues to develop next-generation telescopes to detect NEOs sooner.
What do you think? Should governments invest more in asteroid tracking? Share your thoughts in the comments below.
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