Space and astronomy news
Great question! The answer has to do with Hubble’s history.
It’s easy to forget that the Hubble has been in space since 1990. That’s going on 30 years now. And during that time, it’s been serviced and had its cameras upgraded.
Continue reading “Why do Some Hubble Images Have That Chunk Taken Out of the Corner?”
Astronomers have discovered a very rare, very unusual planet in a distant solar system. The planet, called NGTS-4b, is three times the size of Earth, and about 20% smaller than Neptune. It’s hotter than our very own Mercury. At about 1,000 degrees Celsius, it would be the hottest planet if it were in our Solar System.
But what really separates this planet is its location. It’s located in what’s called the Neptunian Desert.
Continue reading “A Very Rare Planet Discovered. Less Massive than Neptune, Hotter than Mercury. Very Few Should Exist”
Get used to hearing the name “Jezero Crater.” It’s the landing site for NASA’s Mars 2020 rover. The 2020 rover is slated to launch in July 2020, and will land at Jezero Crater in February, 2021.
It’s pretty easy to see why NASA chose Jezero Crater for the next rover in their Mars Exploration Program (MEP). MEP is NASA’s long-term plan to explore Mars robotically. It includes rovers like Spirit, Opportunity, and MSL, the InSight Lander, orbiting spacecraft, and soon the 2020 rover.
Continue reading “This is Where Mars 2020 Rover is Heading. From this Picture, I Think You Can Guess Why”
A rogue star is one that has escaped the gravitational pull of its home galaxy. These stars drift through intergalactic space, and so are sometimes called intergalactic stars. Sometimes, when a rogue star is ejected from its galaxy, it drags its binary pair along for the ride.
Continue reading “Astronomers are Finding Binary Pairs of Stars Thrown out of Galaxies Together”
Mars is a sandy planet and the HiRISE camera on the Mars Reconnaissance Orbiter (MRO) has given us tons of beautiful pictures of Martian sand dunes. But Mars’ dunes are much different than dunes here on Earth. Their movement is governed by different factors than Earth dunes.
Continue reading “Different Conditions From Earth Drive the Movement of Sand Dunes on Mars”
Hosts:
Fraser Cain (universetoday.com / @fcain)
Dr. Kimberly Cartier (KimberlyCartier.org / @AstroKimCartier )
Dr. Morgan Rehnberg (MorganRehnberg.com / @MorganRehnberg & ChartYourWorld.org)
Dr. Paul M. Sutter (pmsutter.com / @PaulMattSutter)
A strange feature on the surface of Mars has kept scientists guessing about its origin. It’s a surface deposit of a mineral which is more common in the interiors of planets. A new study shows that this interior mineral was probably brought to the surface by an ancient explosive volcano.
Continue reading “This Strange Feature on Mars was Probably the Result of an Ancient Volcanic Explosion”
This week’s Carnival of Space is hosted by me at the CosmoQuest blog.
Click here to read Carnival of Space #613
Continue reading “Carnival of Space #613”
There are a handful of major science institutions around the world that keep track of the Earth’s temperature. They all clearly show that the world’s temperature has risen in the past few decades. One of those institutions is NASA.
Continue reading “NASA’s Long-Term Climate Predictions have Proven to be Very Accurate, Within 1/20th of a Degree Celsius”
One of the most profound similarities between Earth and Mars, one which makes it a popular target for research and exploration, is the presence of water ice on its surface (mainly in the form of its polar ice caps). But perhaps even more interesting is the presence of glaciers beneath the surface, which is something scientists have speculated about long before their presence was confirmed.
These caches of subsurface water could tell us a great deal about Martian history, and could even be an invaluable resource if humans ever choose to make Mars their home someday. According to a recent study by a pair of scientists from the Universities of Texas at Austin and Arizona, there are also layers of ice beneath the northern polar ice cap that could be the largest reservoir of water on the planet.
Continue reading “New layers of water ice have been found beneath Mars’ North Pole”