closest

What if There’s an Earth-Like Planet at One of Our Closest Stars?

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Just over four light-years away, our Solar System’s closest neighboring stars can be found. There’s red dwarf Proxima Centauri, at a distance of 4.2 light-years; and, just a little farther, at 4.37 light-years, a binary system of Sun-like stars – Alpha Centauri AB.   We don’t yet know if there are any Earth-like worlds orbiting … Read more

Closest black hole is actually just one star eating another

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Two years ago, astronomers thought they had seen signs of a black hole 1000 light years from Earth – but it turns out to be a star being consumed by its neighbour Space 2 March 2022 By Alex Wilkins An artist’s impression of the binary star system HR 6819 ESO/L. Calçada Strange signals coming from … Read more

The Closest ‘Black Hole’ to Earth Isn’t What We Thought at All

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What astronomers had concluded to be a black hole a mere 1,120 light-years from Earth instead appears to be something quite different: a two-star system where one of the stars is sucking the life out of the other.   Far from disappointing, though, the conclusion gives astronomers an exciting opportunity to explore how these ‘vampiric’ stars … Read more

Astronomers Detect Rare ‘Missing Link’ Black Hole in Our Closest Galactic Neighbor

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A rare treasure that could shed light on the evolution of black holes has been discovered in the Milky Way’s closest large galactic neighbor. In a cluster of stars in the Andromeda galaxy, aka M31, astronomers studied changes in light to identify a black hole clocking in at almost 100,000 times the mass of the … Read more

You’ve Got a Rare Chance to See a Huge Asteroid Fly by Earth This Week. Here’s How

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In a slow-moving universe, asteroids give us a rare chance to see things moving in real time. We have such a chance coming right up on the evening of Tuesday, January 18th, when 1.1-kilometer asteroid (7482) 1994 PC1 passes 1.23 million miles (1.98 million kilometers) from Earth.   This is about five times the distance … Read more

Happy perihelion! Earth reached its closest point to the sun today.

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The sun is just a little bit closer in Earth’s sky right now. Earth is at its closest to the sun Tuesday (Jan. 4) in its 365.25-day journey. This milestone, called perihelion, coincidentally happens near the start of the Gregorian calendar year observed by much of the world, including in North America. The exact moment … Read more

Comet Leonard makes its closest approach to the sun today, one year after its discovery

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The brightest comet in the night sky right now makes its closest approach to the sun Monday (Jan. 3) and — even if it survives the journey — that will be the only time the comet sees our star close up. That icy wanderer is Comet Leonard, which got brighter unexpectedly in late December as … Read more

This Footage From The First-Ever Probe to Touch The Sun Will Leave You Speechless

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Many science fans were freaking out this week when NASA confirmed that its Parker Solar Probe had become the first spacecraft ever to ‘touch the Sun’ back in April. But if you thought that was mind-boggling, hang on to your seat, because there’s actually time-lapse footage of the spacecraft’s view as it swoops into the … Read more

Comet Leonard is at its closest to Earth right now. Here’s how to spot it.

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Comet Leonard, the brightest comet of the year, made its closest approach to Earth today (Dec. 12) and should be visible through binoculars and telescopes, weather permitting. Officially known as Comet C/2021 A1 (Leonard), Comet Leonard was discovered in January by astronomer Gregory J. Leonard of the Mount Lemmon Infrared Observatory in Arizona. On Sunday, it … Read more