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Here comes Jupiter.

APOD - Mon, 02/17/2025 - 9:07am

Here comes Jupiter. Here comes Jupiter.


Parhelia at Abisko

APOD - Sun, 02/16/2025 - 9:07am

Three suns seem to hug the horizon in this otherworldly winterscape. Three suns seem to hug the horizon in this otherworldly winterscape.


A Cosmic Rose: NGC 2237 in Monoceros

APOD - Sat, 02/15/2025 - 9:07am

The Rosette Nebula, NGC 2237, The Rosette Nebula, NGC 2237,


Deposits found on a nearby asteroid point to salty water in the outer Solar System

Science Daily - Fri, 02/14/2025 - 12:39pm
Asteroids that orbit close to the Earth inevitably cause us some anxiety due to the even remote possibility of a collision. But their proximity also offers ample opportunities to learn more about the universe. Ryugu, a 900-meter diameter asteroid in the Apollo belt, has recently proven useful in our search for signs of life's precursors elsewhere in our Solar System. A team of researchers has found evidence of salt minerals in samples recovered from Ryugu during the initial phase of Japan's Hayabusa2 mission.

New research sheds light on using multiple CubeSats for in-space servicing and repair missions

Science Daily - Fri, 02/14/2025 - 12:37pm
As more satellites, telescopes, and other spacecraft are built to be repairable, it will take reliable trajectories for service spacecraft to reach them safely. Researchers are developing a methodology that will allow multiple CubeSats to act as servicing agents to assemble or repair a space telescope. Their method minimizes fuel consumption, guarantees that servicing agents never come closer to each other than 5 meters, and can be used to solve pathway guidance problems that aren't space related.

Reflections on VdB 31

APOD - Fri, 02/14/2025 - 9:07am

Riding high in the constellation of Auriga, Riding high in the constellation of Auriga,


Phoenix galaxy cluster in the act of extreme cooling

Science Daily - Thu, 02/13/2025 - 2:46pm
New findings explain the Phoenix cluster's mysterious starburst. Data confirm the cluster is actively cooling and able to generate a huge amount of stellar fuel on its own.

Creation of black holes without singularities through pure gravity

Science Daily - Thu, 02/13/2025 - 2:44pm
Traditional black holes, as predicted by Albert Einstein's theory of General Relativity, contain what are known as singularities, i.e. points where the laws of physics break down. Identifying how singularities are resolved in the context of quantum gravity is one of the fundamental problems in theoretical physics. Now, a team of experts has described the creation of regular black holes from gravitational effects and without the need for the existence of exotic matter required by some previous models.

Astronomers gauge livability of exoplanets orbiting white dwarf stars

Science Daily - Thu, 02/13/2025 - 2:34pm
Astronomers used a 3D global computer model to compare the climates of exoplanets in different stellar and orbital configurations. They found that a planet orbiting a white dwarf star would offer a warmer climate than one orbiting a main sequence star.

What can a space rock tell us about life on Earth?

APOD - Thu, 02/13/2025 - 9:07am

What can a space rock tell us about life on Earth? What can a space rock tell us about life on Earth?


Tidal energy measurements help scientists understand Titan's composition, orbital history

Science Daily - Wed, 02/12/2025 - 1:48pm
Scientists are studying Saturn's moon Titan to assess its tidal dissipation rate, the energy lost as it orbits the ringed planet with its massive gravitational force. Understanding tidal dissipation helps scientists infer many other things about Titan, such as the makeup of its inner core and its orbital history.

Will the spider ever catch the fly?

APOD - Wed, 02/12/2025 - 9:07am

Will the spider ever catch the fly? Will the spider ever catch the fly?


Is this the largest hummingbird ever?

APOD - Tue, 02/11/2025 - 9:07am

Is this the largest hummingbird ever? Is this the largest hummingbird ever?


Euclid discovers a stunning Einstein ring

Science Daily - Mon, 02/10/2025 - 1:28pm
Euclid, the European Space Agency's dark Universe detective, has made an astonishing discovery -- right in our cosmic backyard.

Is this the largest hummingbird ever?

APOD - Mon, 02/10/2025 - 9:07am

Is this the largest hummingbird ever? Is this the largest hummingbird ever?


What strange world is this?

APOD - Mon, 02/10/2025 - 9:07am

What strange world is this? What strange world is this?


A Conjunction of Crescents

APOD - Sun, 02/09/2025 - 9:07am

A waxing crescent Moon and a waning crescent Venus are found at A waxing crescent Moon and a waning crescent Venus are found at


LEDA 1313424: The Bullseye Galaxy

APOD - Sat, 02/08/2025 - 9:07am

 The Bullseye Galaxy LEDA 1313424: The Bullseye Galaxy


Temperamental stars are distorting our view of distant planets

Science Daily - Fri, 02/07/2025 - 12:24pm
'Temperamental' stars that brighten and dim over a matter of hours or days may be distorting our view of thousands of distant planets, suggests a new study.

IC 2574: Coddington's Nebula

APOD - Fri, 02/07/2025 - 9:07am

 Coddington's Nebula IC 2574: Coddington's Nebula


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