June 17, 2024
1 Solar System Way, Planet Earth, USA
Solar System

Globular cluster NGC 3201 | Earth Blog

This image from the NASA/ESA Hubble Space Telescope reveals a glowing, ancient globular cluster called NGC 3201, a gathering of hundreds of thousands of stars bound together by gravity. NGC 3201 was discovered in 1826 by Scottish astronomer James Dunlop, who described it as a “quite large and quite bright” object that becomes “rather irregular”

Read More
Space

Did the Earth lose its protective bubble 2 million years ago?

The Earth usually travels inside a protective bubble (the Sun's sphere of influence) called heliosphere. But a new study says that, for a brief period about 2 million years ago, the bubble may have shrunk. The Earth could have been precipitated out of the heliosphere, as shown here as the dark gray bubble on the

Read More
Solar System

Lupus 3 star formation region | Earth Blog

A dark cloud of cosmic dust meanders across this spectacular wide-field image, illuminated by the bright light of new stars. This dense cloud is a star-forming region called Lupus 3, where dazzlingly hot stars are born from the collapse of masses of gas and dust. This image was created from images taken with the VLT

Read More
Solar System

Spiral galaxy NGC 7331 | Earth Blog

This image from the NASA/ESA Hubble Space Telescope shows a spiral galaxy known as NGC 7331. First observed by prolific galaxy hunter William Herschel in 1784, NGC 7331 is located about 45 million light years away, in the constellation of Pegasus (The Winged Horse). . In front of us partially edge-on, the galaxy shows its

Read More
Space

The real-life Star Trek exoplanet doesn't exist

View larger. | Artist's concept of what the HD 26965 b – o is Vulcan – might have seemed, if it really existed. A new study shows that the possible exoplanet It's probably just an astronomical illusion. Image via POT/ JPL-Caltech. HD 26965 b, also nicknamed Vulcan after the famous planet in Star TrekIt was

Read More
Solar System

TRAPPIST-1 planets probably rich in water

A new study has found that the seven planets orbiting the nearby ultracool dwarf star TRAPPIST-1 are made primarily of rock, and some could potentially contain more water than Earth. The densities of the planets, now known with much more precision than before, suggest that some of them could have up to 5 percent of

Read More
Space

The North Star: Does it ever move?

View in EarthSky community photos. | The shining star in this montage of long exposure photographs is polar Star, the North Star. Perhaps you have heard that it remains still in the northern sky, while the other stars revolve around it? That is almost true, but not entirely. Marcella Giulia Pace in Modica, Sicily, Italy,

Read More
Solar System

Spiral galaxy NGC 1559 | Earth Blog

About 50 million light-years away lies a small, somewhat overlooked galaxy called NGC 1559. Photographed here by Hubble's Wide Field Camera 3, this barred spiral is located in the little-observed southern constellation of Reticulum. ). NGC 1559 has huge spiral arms packed with star formation and is moving away from us at a speed of

Read More
Space

New exoplanet catalog reveals 126 exotic worlds

The new NASA exoplanet The catalog contains 126 newly discovered worlds of a wide variety. It will help astronomers learn more about how exoplanets form and evolve. The catalog will also help them compare exoplanets with planets in our own solar system. Image via WM Keck Observatory/ Adam Makarenko/ University of California, Riverside. A new

Read More
Solar System

R Sculptor | Earth Blog

This ghostly image shows a distant, pulsating red giant star known as R Sculptoris. Located 1,200 light-years away in the Sculptor constellation, R Sculptoris is something known as a carbon-rich asymptotic giant branch (AGB) star, meaning it is nearing the end of its life. At this stage, low- and intermediate-mass stars cool, create extended atmospheres,

Read More
X