Sally Ride on the space shuttle Challenger in 1983. Image via NASA/ Mental Floss. On June 18, 1983, physicist Sally Ride (1951-2012) became the first American...
Author - Rohan Ganguly
The NASA/ESA Solar and Heliospheric Observatory – affectionately called SOHO – is easily history’s greatest comet discoverer. This space observatory is...
Artist’s concept of the system known as PSR J0337+1715. It’s triple system, consisting of a millisecond pulsar with 2 white dwarf companions. The green mesh...
Valentina Tereshkova in her spacesuit. Image via ESA. On June 16, 1963, 26-year-old Valentina Tereshkova, under the radio call name Chaika (Seagull), was...
View larger. | Stars within 12 light-years of our sun. The lines on the grid are 4 light-years apart. Proxima is part of the triple star system we see as the...
The European Space Agency (ESA) announced on June 15, 2020 that its Solar Orbiter spacecraft – which sped into space this past February in a dramatic night...
View larger. | The New Horizons spacecraft, which visited Pluto in 2015, is really out there! This 2-frame animation shows Proxima Centauri, the nearest star...
Diagram depicting how KOI-456.04 orbits in the habitable zone of its star, Kepler-160, at about the same distance Earth is from the sun. The planet, less than...
We hear a lot about asteroids or comets passing close to Earth, but what does “close” mean? For a comet, it might mean millions of miles. For an asteroid, it...
Timeline of the universe, from Big Bang to present day. The far left depicts the earliest moment we can probe so far, when a period of cosmic inflation...
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