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 […]

44 Closest Stars and How They Compare to Our Sun (infographic)

Humanity has been admiring, studying, following, and musing about stars since the dawn our of existence. When you wish upon a star, it may be bewildering to imagine just how far away that star truly is. We know that the closest star to our planet is the Sun, but what about beyond that? The closest […]

Proxima Centauri c: how we spotted a potential new planet around the Sun’s neighbouring star

Hugh Jones, University of Hertfordshire Most exoplanets, bodies orbiting stars other than the sun, are too far away for us to be able to send probes to. So it’s no wonder that the discovery of a possible habitable planet around the sun’s nearest neighbour star, Proxima Centauri, a few years ago generated a lot of […]

Huge Proxima Centauri flare blasts nearest exoplanet Proxima b

On March 24, 2017, astronomers led by Carnegie’s Meredith MacGregor and Alycia Weinberger discovered that a giant stellar flare erupted from Proxima Centauri, the closest star to the Sun (Proxima Centauri means ‘nearest [star] of Centaurus’), using data from the Atacama Large Millimeter/submillimeter Array (ALMA). The huge flare was 10 times larger than a major […]

51 Pegasi b: water found on the exoplanet

Scientists spotted water in the atmosphere of 51 Pegasi b, one of the first exoplanets ever been discovered. It is around 50 light-years away – so we can call it a “nearby” exoplanet – and it is in the constellation of Pegasus. 51 Pegasi b has not marked a breakthrough in astronomical research for the […]

Proxima Centauri b May Have Oceans

Proxima Centauri b, the Earth-like planet orbiting the red dwarf Proxima Centauri may have oceans, scientists say. The planet was discovered in August 2016 and caused excitement because it’s in the habitable zone of its star, and it’s rocky. And it’s in the Alpha Centauri, the closest star system to us! Researches of France’s National […]

Proxima Centauri b: Did We Find Earth’s Cousin?

On August 24, 2016, a group of scientists led by Dr. Guillem Anglada-Escude at the Queen Mary University of London, announced the discovery of a terrestrial exoplanet orbiting the red dwarf Proxima Centauri, the nearest known star to the Sun. Proxima Centauri is a Latin idiom, meaning “nearest (star) of Centaurus” (see notes 1). The new […]

Will we ever visit other stars?

Is it possible for humanity to visit other stars (or other stars that have planets, actually) in the future? Earth is our one and only home. As Carl Sagan said (Pale Blue Dot: A Vision of the Human Future in Space), “On Earth, everyone you love, everyone you know, everyone you ever heard of, every […]