30 December, 2025
major-astronomy-milestones-of-2025-space-trips-and-discoveries

The year 2025 marked significant developments in astronomy, with groundbreaking missions and discoveries that expanded our understanding of the cosmos. Among the most notable events was the all-women space trip conducted by Blue Origin, which successfully launched its inaugural mission with an all-female crew, including Lauren Sánchez, former NASA scientist Amanda Nguyen, and singer Katy Perry. This historic journey to the edge of Earth’s atmosphere lasted approximately 11 minutes and sparked a mix of admiration and criticism.

All-Women Space Mission

The mission, which launched in July, generated considerable debate. Critics described it as excessive, while supporters hailed it as an inspiring milestone for women in science and space exploration. “As stupid as I thought it would be, it was even stupider,” commented Heather Schwedel for Slate. In contrast, Gayle King, another crew member, emphasized the positive impact of the mission, stating, “Most people are really excited and cheering us on and realize what this mission means to young women, young girls, and boys, too.”

Significant Comet Discovery

In July, astronomers identified the 3I/ATLAS comet, marking it as only the third interstellar object recorded to traverse the solar system. This comet, believed to have originated from a distant exoplanet, has intrigued scientists eager to study its composition and trajectory. “When 3I/ATLAS is closest to the Earth, all the features that we are looking for will be easier to detect with our telescopes,” noted Darryl Z. Seligman, an assistant professor at Michigan State University. Observations during its approach provided valuable insights into planetary formation.

Scientific interest was heightened as the comet approached Earth, presenting a prime opportunity for astronomers to glean details about its origins and characteristics.

Alien Life Claims and Controversy

April brought a controversial claim regarding potential signs of life on the exoplanet K2-18b, located 120 light-years from Earth. A study published in The Astrophysical Journal Letters suggested the presence of dimethyl sulfide, a molecule typically produced by living organisms on Earth. However, subsequent analyses failed to corroborate these findings, leading to skepticism within the scientific community. “The claim just absolutely vanishes,” stated Luis Welbanks, an astronomer at Arizona State University.

NASA’s Extended Mission in Space

Meanwhile, NASA astronauts Butch Wilmore and Suni Williams returned to Earth in March after spending an unprecedented 286 days aboard the International Space Station. Originally intended as an eight-day mission, their return was delayed due to issues with the Boeing Starliner capsule, which experienced thruster failures shortly after launch. Their extended time in space provides crucial data on how the human body adapts to prolonged exposure to space conditions. Rachael Seidler, an expert in spaceflight health, highlighted the importance of such missions: “By following astronauts like Butch and Suni before, during, and after their missions, we can track how the human body responds to the extreme conditions of space.”

New Moons Discovered Around Saturn

In a remarkable discovery, scientists confirmed the existence of 128 new moons orbiting Saturn, increasing the total number of known moons to 274. Although many of these new moons are only a few miles across, they contribute to our understanding of the dynamics and history of Saturn’s orbital environment. According to The New York Times, these small moons suggest a history of catastrophic collisions in space. To further study these celestial bodies, scientists plan to utilize advanced telescopes and potentially spacecraft missions in the future.

As 2025 progresses, the field of astronomy continues to evolve with discoveries that captivate the public’s imagination and deepen our understanding of the universe. Each breakthrough, from historic space missions to the search for extraterrestrial life, highlights humanity’s relentless pursuit of knowledge beyond our home planet.