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NASA alerts: today, an asteroid will pass “close” to Earth at over 18,000 km/h, but it poses no risk.

Written by Ruth Rodrigues
Published on 24/03/2026 at 19:52
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Asteroid 2026 FM3 approaches Earth this Tuesday (24), but NASA assures there is no impact risk and monitors trajectory.

An asteroid identified as 2026 FM3 will make a close approach to Earth this Tuesday (24), at 11:07 PM (Brasilia time), according to NASA.

The object, which is similar in size to a car, was detected just a few days earlier by an astronomical project in the United States.

Despite the proximity, scientists assure that there is no risk of collision, as the space rock will pass at a safe distance from the planet. The observation reinforces the importance of the constant monitoring of these celestial bodies.

Asteroid 2026 FM3 passes near Earth without risk, NASA says

According to NASA, the asteroid 2026 FM3 will pass about 237 thousand kilometers from Earth, which is just over half the distance between the planet and the Moon. Although it seems close, this interval is considered safe within astronomical standards.

In addition, the object travels at an impressive speed of over 18 thousand km/h. Even so, it poses no threat, as its trajectory has already been analyzed with precision.

A few hours after this passage, the asteroid will head towards the Moon, maintaining an even greater distance, posing no risk to either celestial body.

NASA explains asteroid size and impact on Earth

The asteroid 2026 FM3 measures between 4 and 8 meters in diameter, being classified as small in spatial terms. For comparison, experts consider only objects larger than 140 meters to be dangerous.

Therefore, NASA does not include this type of rock on the list of threats to Earth. Even in a hypothetical impact scenario, the Earth’s atmosphere would act as a natural shield.

Thus, the most likely outcome would be the complete burning of the object before it reaches the ground. This phenomenon usually generates what we know as “shooting stars.”

Image: NASA JPL, NASA/STScI/J. DePasquale/A. Pagan

Studies show that the asteroid 2026 FM3 follows an almost circular orbit around the Sun. During this journey, it crosses the orbit of Earth twice a year.

The complete cycle of this movement lasts approximately 354 days. This means that the object has made several close passes to the planet over the decades.

The closest recorded approach occurred in 1965, when the asteroid came within just over 49 thousand kilometers of Earth, a distance considered small in space.

NASA’s asteroid monitoring grows every year

Currently, NASA is tracking over 41 thousand near-Earth objects (NEOs). These bodies include asteroids and comets that pass relatively close to the planet.

With advancements in technology, this number is expected to grow. New telescopes, such as those recently installed in Chile, are expanding the capacity to detect objects in the Solar System.

In addition, modern systems allow for precise calculations of each asteroid‘s trajectory, ensuring greater safety and predictability.

The passage of the asteroid 2026 FM3 highlights the relevance of continuous observation of space. Each approach provides important data to understand the behavior of these objects.

According to NASA, there is no forecast of large asteroid impacts on Earth in the next 100 years. Nevertheless, studies continue to prevent possible future risks.

Additionally, space agencies conduct simulations and develop technologies to deflect dangerous objects if necessary.

The trajectory of asteroid 2026 FM3 (in white) intersecting the orbit of Earth (in light blue). Source: SSD/JPL/NASA.

Earth remains safe despite asteroid approach

Even with the increase in the number of discoveries, experts emphasize that there is no cause for concern. The vast majority of monitored asteroids pose no real risk.

In the case of asteroid 2026 FM3, its small size and already known trajectory ensure total safety for Earth.

Therefore, events like this should be seen as scientific opportunities. They help to expand knowledge about the universe and strengthen planetary defense strategies conducted by NASA.

Source: Olhar Digital

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Ruth Rodrigues

Formada em Ciências Biológicas pela Universidade do Estado do Rio Grande do Norte (UERN), atua como redatora e divulgadora científica.

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