If the phrase “My god, it’s full of stars” was ever appropriate, it’s today, because of these new images from the James Webb Space Telescope. These are ‘just’ engineering images, mind you, but they are incredible. The number of stars and galaxies visible in each image is just remarkable, not to mention the crisp clarity in the fields of view.
Continue reading “Prepare Yourself: New Engineering Images from JWST Will Blow Your Mind”Amazing! Ingenuity Helicopter Flies to the Perseverance Backshell and Parachute to See Them Close Up
You may recall we reported earlier this month that the Perseverance rover finally spotted its parachute and backshell off in the distance. This is the hardware that safely brought the rover to Mars surface on February 18, 2021.
But now, the incredible Ingenuity helicopter has snapped better images of those items, while it was hovering in the Martian air during its 26th flight.
And what a mess! The poor backshell crashed to the surface, splitting into pieces.
Continue reading “Amazing! Ingenuity Helicopter Flies to the Perseverance Backshell and Parachute to See Them Close Up”Ganymede Casts a Long Shadow Across the Surface of Jupiter
What is that large dark smudge on Jupiter’s side? It may remind you of a certain scene from the sci-fi film “2010: The Year We Make Contact,” where a growing black spot appears in Jupiter’s atmosphere.
But this is a real photo, and the dark spot is just an elongated shadow of Ganymede, Jupiter’s largest moon. Just like when Earth’s Moon crosses between our planet and the Sun creating an eclipse for lucky Earthlings, when Jupiter’s moons cross between the gas giant and the Sun, they create shadows too.
Continue reading “Ganymede Casts a Long Shadow Across the Surface of Jupiter”Hubble has Characterized 25 Hot Jupiters. Here’s What we Know so far
Hot Jupiters are giant exoplanets – even more massive than Jupiter – but they orbit closer to their star than Mercury. When they were first discovered, hot Jupiters were considered oddballs, since we don’t have anything like them in our own Solar System. But they appear to be common in our galaxy. As exoplanets go, they are fairly easy to detect, but because we don’t have up-close experience with them, there are still many unknowns.
A new study used archival data from the Hubble and Spitzer space telescopes to study this class of giant gas exoplanets, and undertook one of the largest surveys ever of exoplanet atmospheres. The researchers said they employed high performance computers to analyses the atmospheres of 25 hot Jupiters using data from about 1,000 hours of telescope observations. Their findings, published in the Astrophysical Journal Supplement Series, help to answer several long-standing questions about hot Jupiters.
Continue reading “Hubble has Characterized 25 Hot Jupiters. Here’s What we Know so far”Eight Missions are Getting Extensions, Most Exciting: OSIRIS-REx is Going to Asteroid Apophis
NASA has granted mission extensions to eight different planetary missions, citing the continued excellent operations of the spacecraft, but more importantly, the sustained scientific productivity of these missions, “and the potential to deepen our knowledge and understanding of the solar system and beyond.” Each mission will be extended for three more years.
One of the most exciting extensions gives a new mission to the OSIRIS-REx spacecraft, sending it to one of the most infamous asteroids of them all, the potentially hazardous asteroid Apophis.
Continue reading “Eight Missions are Getting Extensions, Most Exciting: OSIRIS-REx is Going to Asteroid Apophis”Here’s Something Rare: a Martian Crater That isn’t a Circle. What Happened?
Most impact craters are usually circular and fairly symmetric, but not all. This odd-shaped crater on Mars is obviously an impact crater, but it has a unique oblong shape. What happened?
Continue reading “Here’s Something Rare: a Martian Crater That isn’t a Circle. What Happened?”Here are All of Hubble’s Observations in One Picture
Over the past 32 years, Hubble has made about 1.4 million observations of our Universe. Physicist Casey Handmer was curious how much of the sky has been imaged by Hubble, and figured out how to map out all of Hubble’s observations into one big picture of the sky.
It’s a gorgeous, almost poetic look at Hubble’s collective view of the cosmos. So, how much of the sky has Hubble imaged? The answer might surprise you.
Continue reading “Here are All of Hubble’s Observations in One Picture”Wow! Perseverance Sees a Solar Eclipse on Mars
Imagine standing on Mars, and seeing this with your own eyes.
Continue reading “Wow! Perseverance Sees a Solar Eclipse on Mars”One Giant Impact Made the Two Halves of the Moon so Different
The South Pole-Aitken Basin on the Moon formed from a gigantic impact about 4.3 billion years ago. But that impact may have changed everything about the Moon, and explain why the lunar farside looks so different from the nearside, the side we see from Earth.
Continue reading “One Giant Impact Made the Two Halves of the Moon so Different”Brrr. Webb’s MIRI has Reached 6.4 Kelvin, Just a few Degrees Above Absolute Zero
The latest update on the James Webb Space Telescope literally sent a shiver down my spine! The telescope’s Mid-Infrared Instrument (MIRI) has now reached its operating temperature of a chilly 7 kelvins (7 deg above absolute 0, or -266 degrees C,-447 degrees F).
MIRI has now been turned on and is undergoing initial checkouts.
Continue reading “Brrr. Webb’s MIRI has Reached 6.4 Kelvin, Just a few Degrees Above Absolute Zero”