New Horizons shows nearby stars from an unearthly perspective

NASA’s New Horizons space probe is currently the farthest human-made object that still able to take photographs. It was launched on January 19, 2006. As of June 14, 2020, it is about 6.973 billion kilometers (4.332 billion miles) away from Earth. This is about 46.61 AU, or Astronomical Unit, the distance between the Earth and […]

Top 20 Exciting Advances in Space Science in the 2010s

Today is the last day of the 2010s – and what a decade it has been for space science and space exploration! Here is a timeline of the top 20 major (and exciting!) advances in space science in the 2010s.

Watch: ancient distance and apparent size of the Moon

Today, on average, the Moon is 384,400 km (238,000 miles) away from the Earth. But that was not always the case. Our satellite was much closer in the past. Now, Dr. James O’Donoghue (@physicsJ on Twitter) created the animation below showing how close was the Moon to the Earth and how was its apparent size […]

Watch: What happens to old spacecraft?

Since the launch of the first artificial Earth satellite, Sputnik 1, on October 4, 1957, we launched thousands of spacecraft into Earth orbit and beyond. A fraction of them are still functioning, but what happened to the vast majority of them? “The Curious Droid” published another informative video titled “What happens to old spacecraft?”

Five space probes leaving the solar system (for now)

As of 2019, only five space probes are leaving the solar system: Pioneer 10, Pioneer 11, Voyager 1, Voyager 2 and New Horizons. The Voyagers already left the solar system and entered the interstellar space (Voyager 1 on August 25, 2012, and Voyager 2 on November 5, 2018. The others also will leave the heliosphere […]

Size comparison of the Sun and the planets

This size comparison of the Sun and the planets in our solar system is going around frequently, but it’s still amazing to see it. Created by the San Francisco-based artist Roberto Ziche, the image features the Sun in the background with the planets, Moon and the four dwarf planets lined up in the foreground in the […]

New Horizons beats Voyager 1’s Record for being farthest from Earth while capturing images

It took 27 years, but finally, NASA’s New Horizons spacecraft beat Voyager 1’s record for being farthest from Earth while capturing images. Taken on December 5, 2017, New Horizons image of the open star cluster NGC 3532 (also commonly known as the Football Cluster or the Wishing Well Cluster) became the farthest image ever made by any […]