Time flies. It seems like 2015 was yesterday, but five years have gone by. And if you’re starting to feel all nostalgic and everything like I am, let’s take a look at some of the significant things that happened that year.

The year 2015 was a great year for space discoveries. NASA's Mars Reconnaissance Orbiter (MRO) found that the Martian slopes have dark streaks. The scientists soon found out these were created by water flow. It also sparked an ongoing discussion on whether Mars could actually support life.

The same year, NASA’s Horizon spacecraft made its first fly-by of Pluto and took photos of both the planet and its largest moon. The images revealed that there are ice mountains and two new moons that weren’t known to us before.

Bored Panda reached out to the girl in the picture who goes by the Twitter handle @b_vega15 to find out more about her incredible transformation as seen in her 2015 vs 2020 image. B, who lives in Sacramento, told us that “In that first picture (2015) I weighed 252 lbs and I was happy to be at my very first Taylor Swift concert, alone.”

She said the past 5 years weren’t easy as she tried “losing weight multiple times, but something inevitably stalled the plan (death of a friend, depression, car accident, etc.)” It's only in 2019 that B got a gastric bypass, but assured us it “wasn’t easy to retrain your stomach and not knowing who you’re staring at in the mirror, working through insecurities you have.”

B wishes that she had been more kind to herself and “gotten out of my own way sooner.” She said that “Being your own worst critic truly is crippling.”

Five years ago, the landmark decision was made by the US Supreme Court which ruled 5-4 in favor of same-sex marriage nationwide. The then-president Barack Obama praised the decision that legalized same-sex marriage in all 50 states, saying it was a “victory for America.”

In the good news department, 2015 was marked by a decrease in extreme poverty worldwide for the first time ever. Extreme poverty is defined as living on less than $1.25 per day. According to The Age, the United Nations reported this year that the number of people below the poverty line had fallen from 1.75 billion in 1999 to 836 million.