Un asteroide descubierto días atrás pasará muy cerca de la Tierra – CNN en Español

If you’ve spent any time staring up at the vast, ink-black skies over the Sonoran Desert, you know that Tucson has a special relationship with the cosmos. We aren’t just living in a city known for its heat and hiking; we’re living in a global hub for planetary defense. So, when news breaks that an asteroid—specifically one named 2026JH2—is making a close approach to Earth this Monday, it hits a bit closer to home for us. Why? Because this particular space rock wasn’t spotted by some distant agency in Europe or a random satellite; it was caught in the act by the Mount Lemmon Survey, right here in our own backyard in Tucson, Arizona.

The Anatomy of a “Close Call”: Understanding Asteroid 2026JH2

First, let’s get the anxiety out of the way: we are perfectly safe. According to Richard Binzel, a professor of planetary sciences at MIT and the mind behind the Torino Scale, 2026JH2 poses absolutely no threat to our planet. In the grand scheme of the universe, “close” is a very relative term. This asteroid is projected to pass within 91,593 kilometers of Earth. While that sounds like a terrifyingly small number when you’re thinking about the void of space, it’s actually about 24% of the distance between us and the Moon. To put it in perspective, it’s passing more than twice as far away as the geostationary satellites that handle our weather reports and satellite TV.

As for the object itself, imagine a couple of school buses floating through the vacuum at thousands of miles per hour. That’s the approximate size of 2026JH2. It belongs to the “Apollo” class of asteroids, which are the ones that orbit the Sun but have trajectories that cross Earth’s path. These are the objects that astronomers keep a very close eye on, not because they are all destined to hit us, but because they are the only ones that *could*.

The Tucson Connection and the Mount Lemmon Survey

This proves a point of local pride that the Mount Lemmon Survey discovered this object on May 10. For those who aren’t steeped in the local science scene, the survey is a critical part of the University of Arizona’s contributions to global safety. By utilizing the high-altitude clarity of Mount Lemmon, astronomers can scan the skies for Near-Earth Objects (NEOs) long before they become a problem. This represents essentially our early warning system.

The discovery of 2026JH2 is a textbook example of why this infrastructure matters. The asteroid was found, tracked, and analyzed within a matter of days. This rapid identification allows agencies like the European Space Agency (ESA) and NASA’s Jet Propulsion Laboratory (JPL) to refine their orbital calculations, ensuring that the world knows exactly where the rock is and, more importantly, where it isn’t going to be. When we talk about local science initiatives, this is the gold standard—global impact driven by local expertise.

Putting the Risk in Perspective: The Torino Scale

Many of us see a headline about a “close-approach asteroid” and immediately think of Hollywood disaster movies. However, the scientific community uses the Torino Scale to strip away the drama. Created by Richard Binzel, this scale ranges from 0 (no hazard) to 10 (certain global catastrophe). 2026JH2 sits firmly at 0.

Binzel points out that these events are incredibly mundane. Objects the size of a car pass between the Earth and the Moon almost every single week. Bus-sized objects, like this one, drift through our neighborhood several times a year. The difference this time is simply that we had the technology and the local vigilance in Tucson to spot it and name it. It’s less of a “near-miss” and more of a “routine flyby” that happens to be scientifically engaging.

Why We Track “Harmless” Rocks

You might wonder why we spend so much effort tracking a school-bus-sized rock that isn’t going to hit us. The answer lies in data. Every time an Apollo-class asteroid passes by, scientists get a chance to study its composition, its rotation, and its trajectory. This data helps refine the models used to predict the movement of much larger, more dangerous objects. Understanding the frequency of these flybys helps the JPL Small-Body Database build a comprehensive map of the “asteroid minefield” we navigate through every day.

Navigating the Aftermath: Local Resources for the Curious and the Concerned

Whether this event has sparked a new interest in astronomy for your kids or triggered a sudden desire to get your home emergency kit in order, Tucson has a wealth of expertise to draw from. Given my background in analyzing regional trends and professional services, I’ve found that events like this usually drive residents toward three specific types of local professionals to help them make sense of the world.

STEM Education Specialists & Private Tutors

With the University of Arizona’s influence, Tucson is teeming with PhDs and educators. If your child is suddenly obsessed with planetary defense, look for tutors who specialize in astrophysics or planetary science. The key criterion here is a proven track record of translating complex celestial mechanics into age-appropriate curriculum, rather than just general science tutoring.

Professional Optical Equipment Consultants

Many people want to “see” these events, but buying a telescope from a big-box store often leads to frustration. Look for local consultants who understand the specific atmospheric conditions of the Sonoran Desert. You want someone who can advise on aperture and focal length based on Tucson’s light pollution levels and the specific targets (like NEOs) you’re hoping to track.

Certified Emergency Preparedness Consultants

While 2026JH2 isn’t a threat, it often reminds people that they aren’t prepared for *any* disaster. Instead of generic kits, look for consultants certified in FEMA protocols or those with backgrounds in civil defense. The ideal professional should provide a customized home resilience plan that accounts for Arizona-specific risks—like monsoon flooding and extreme heat—alongside general emergency readiness.

It’s a strange feeling knowing that a piece of the early solar system just zipped past us, spotted by people working just a few miles up the mountain. It reminds us that while we’re grounded in the dust of the desert, we’re part of a much larger, more volatile system. Staying informed is the best way to turn that cosmic anxiety into cosmic curiosity.

Ready to find trusted professionals? Browse our complete directory of top-rated science and astronomy professionals in the Tucson area today.