NASA Monitors Five Asteroids Near Earth This Week, Including One Larger Than a Football Field

NASA’s Asteroid Watch Dashboard has released an updated list of five asteroids scheduled for close approaches to Earth between May 27 and 28, 2025. These near-Earth objects (NEOs) range in size from that of a small bus to a large structure, with the nearest passing at just 211,000 miles—closer than the Moon. The dashboard, accessible at jpl.nasa.gov, offers real-time information on their size, velocity, and distance. Although none of these asteroids represent a collision hazard, their proximity highlights the importance of continued planetary defense monitoring. Here’s a detailed look at each upcoming flyby.

2025 JP – May 27, 2025

The 2025 JP asteroid is expected to pass Earth on May 27, 2025, coming within 3.19 million miles. This rock, about 79 feet across and comparable in size to an airplane, is rushing past at high speed. While this distance seems vast, it remains relatively close in cosmic terms. NASA’s radar and telescope arrays continue to monitor its orbit to ensure it remains stable over long periods. The size and speed of JP underscore why ongoing monitoring of mid-sized objects is crucial, as any impact could have serious consequences.

2025 KX3 – May 28, 2025

Passing at just 211,000 miles—closer than the Moon—2025 KX3 is the closest asteroid in this group, arriving on May 28, 2025. Measuring roughly 34 feet across, about the length of a bus, its proximity has astronomers paying close attention. Although relatively small, an impact from an object like this could create a significant atmospheric blast. As a result, observatories are poised to gather extensive visual and radar observations. This event highlights how even small space rocks can pose challenges when near Earth.

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2025 JR – May 28, 2025

The largest asteroid on the list, 2025 JR, measures approximately 250 feet wide—comparable to a large building. It will fly by Earth on May 28, 2025, at a distance of about 2.87 million miles. Given its size, it holds the potential to cause regional or even continental damage if it were ever on a collision course. Thankfully, current data indicate no threat from this flyby. Its substantial size also makes it ideal for detailed observation, potentially revealing surface and structural characteristics that could inform future asteroid deflection efforts.

2025 KW – May 28, 2025

Asteroid 2025 KW, about 91 feet wide—similar to the size of an airplane—will pass Earth at roughly 3.07 million miles on May 28, 2025. Although smaller than 2025 JR, its relatively fast approach and notable size have captured scientific interest. Data from this flyby will help refine orbital models, contributing to more accurate predictions. KW exemplifies NASA’s mission to catalog the majority of near-Earth asteroids larger than 140 meters, while also keeping track of smaller objects that still pose risks.

2025 KU1 – May 28, 2025

The last asteroid in this series, 2025 KU1, will pass at an estimated 4.6 million miles from Earth on May 28, 2025. Though it is the most distant of the five, with a width near 63 feet—roughly the size of a house—it remains a subject of interest. Asteroids of this size are typically too dim for amateur telescopes but are well within NASA's tracking capabilities. This flyby aids long-term monitoring efforts, as scientists analyze how smaller NEOs respond to forces like solar radiation and gravitational interactions during their orbits.