Archive · 25 Sep 2025
Nasa's Mars Observer Launch, Chicago Marathon, and More on September 25
On September 25th, several important events happened.
In 1992, NASA sent a spacecraft called the Mars Observer to study Mars, but it was unfortunately lost.
In 1977, the first Chicago Marathon took place, becoming a famous running event.
Also, the environmentalist Wangari Maathai, who won a Nobel Peace Prize, passed away in 2011.
The Little Rock Nine, brave African-American students, began attending an integrated school in 1957, facing opposition but making history in the Civil Rights Movement.
NASA launched the Mars Observer on September 25, 1992, to explore the Red Planet.
The Mars Observer mission was lost three days before entering Mars orbit.
The first Chicago Marathon was held on September 25, 1977, with over 4,200 runners.
Environmentalist Wangari Maathai died on September 25, 2011.
The Little Rock Nine began their first day of classes on September 25, 1957.
- Who
- Nasa, Chicago Track Club, Wangari Maathai, Little Rock Nine
- What
- Launched Mars Observer, First Chicago Marathon, Death of Wangari Maathai, Little Rock Nine start of classes
- When
- September 25, 1992, September 25, 1977, September 25, 2011, September 25, 1957
- Where
- Cape Canaveral, Florida; Chicago; Little Rock, Arkansas
- Why
- To explore Mars, to promote long-distance running, to recognize environmental work, to desegregate schools.
- Mars Observer Launch Date
- September 25, 1992
- Mars Observer Objective
- Explore the Red Planet
- Chicago Marathon Start Date
- September 25, 1977
- Wangari Maathai's Death Date
- September 25, 2011
- Little Rock Nine Start Date
- September 25, 1957