Are Asteroids Approaching Earth in 2021 and 2022?

Indeed, several asteroids came close to Earth during 2021 and 2022, making headlines and capturing the attention of space enthusiasts worldwide. Notably, two significant asteroids are highlighted in this period:

2021 PH27: A Short Orbit Around the Sun

This asteroid, discovered in August 2021, has a remarkably short orbit around the Sun. Its path brings it close to Earth several times, making it a subject of interest for astronomers and researchers. The rapid passage of 2021 PH27 is particularly noteworthy due to its relatively small size and quick movements through the solar system.

2022 AP7: A Large Potentially Hazardous Asteroid

First spotted in January 2022, 2022 AP7 is one of the largest potentially hazardous asteroids (PHAs) identified in recent years. With its significant size, this asteroid stands out among others, attracting special attention from space agencies like NASA. The potential impact risk assessment of 2022 AP7 is a critical concern for astronomers and planetary scientists, who continuously monitor its trajectory.

2022 YG1: A Close Approach in December 2022

Further distinguishing 2021 as an interesting year for asteroid activity, 2022 YG1 made its closest approach to Earth in December 2022. As one of the latest confirmed approaches, this event highlights the ongoing need for vigilance in monitoring near-Earth objects (NEOs).

NASA and other space agencies, such as the European Space Agency (ESA) and the Japan Aerospace Exploration Agency (JAXA), play a crucial role in the continuous monitoring of near-Earth objects (NEOs). These agencies continuously track these objects to evaluate any potential impact risks. They provide regular updates on upcoming close approaches, allowing the public to stay informed and prepared.

Comets Near Earth in the Next Five Years

Additionally, websites detailing all known comets slated to visit our solar system within the next five years offer a unique perspective on astronomical events. While it's true that new comets will be discovered, the current list provides a detailed overview of expected visitors. However, it's essential to remember that predicting the brightness of a comet can be challenging. The magnitudes listed on these websites should be taken with a grain of salt, as they can vary significantly due to various factors, including the comet's distance from the sun and interstellar dust.

Common Asteroid Activity: Observations and Projections

Based on past observations and mathematical projections of asteroid orbits, we can expect several asteroids to make close approaches to Earth during 2021 and 2022. It is not uncommon for asteroids to come within a distance closer to the Earth than the Moon. In the last month, at least two asteroids have come perilously close to our planet.

It is rare for an asteroid to pass within tens of thousands of kilometers of Earth, although currently, none are predicted to do so in the remainder of 2021 or 2022. This incomplete protection from known asteroids does not rule out the possibility of a newly discovered asteroid coming into close proximity during this period.

Lastly, it's worth noting that daily, approximately a hundred tons of extraterrestrial rock enter Earth's sphere of influence in the form of tiny asteroids. While most of these meteoroids burn up completely in the atmosphere, their impact on Earth remains a fascinating but manageable phenomenon. Therefore, while asteroids can undoubtedly hit Earth, the generally small mass of these objects after atmospheric entry means they do not pose a significant threat to life on our planet.

For further details on any specific asteroid or event, please feel free to ask or visit the official websites of space agencies. These resources offer comprehensive and up-to-date information on the latest discoveries and predictions in the field of celestial observations.