New fossils found in Australia show a unique ecosystem with carnivorous dinosaurs

Coastline cliffs in victoria

Dinosaur fossils found in southeastern Australia reveal a unique ecosystem unlike any other in the world. The research, published in the Journal of Vertebrate Paleontology, describes a hierarchy of predators in Cretaceous Australia which is unlike ecosystems anywhere else. Aerial view at Twin Reefs fossil site in Bunurong Coastal Reserve. Supplied. The fossils were unearthed … Read more

Does Jupiter’s Moon Callisto Have an Ocean? The Evidence is Mounting

Europa (L), Enceladus (M), and Callisto (R) have distinctly different surfaces, yet all likely have subsurface oceans.

Some of our Solar System’s moons have become very enticing targets in the search for life. There’s growing evidence that some of them have oceans under layers of ice and that these oceans are warm and rich in prebiotic chemistry. NASA’s Europa Clipper is on its way to examine Jupiter’s moon Europa, and the ESA’s … Read more

Lunar Gateway’s Core HALO Module Enters the Clean Room

HALO

Gateway’s HALO module heads to the U.S., on its long path to orbiting the Moon. Preparations for Lunar Gateway are starting to come together. Thales Alenia Aerospace engineers recently began a series of checks on the HALO (Habitation Logistics Outpost) core module. Currently at the company’s Turin, Italy facility, the module is set to head … Read more

Earth’s ice caps are temporary and rare, study suggests

Earth's ice caps: About 3/4 of Earth with a large part of the upper region covered in white ice. Ocean and clouds surround the ice area.

View larger. | Here’s a view of Earth on September 21, 2005, showing the entire region of Antarctica with land ice and its seasonal sea ice. A new study shows that Earth’s ice caps are a rare event in the planet’s history. Image via Andrzej 22/ Wikimedia Commons/ NASA (Public domain). Earth has two ice … Read more

Einstein Probe’s X-ray vision discovers an ‘impossible’ pair of vampire stars

A flash of powerful X-ray light coming from a nova explosion on a white dwarf star has caught the attention of astronomers using the Chinese–European Einstein Probe. This nova is especially exciting because the white dwarf star on which it is found exists in a particularly unusual binary star system. The high-energy flare was spotted … Read more

What is dark energy? Exploding white dwarf stars may help us crack the case

a small white-and-blue mottled orb next to a fiery red-and-orange orb, against a background of stars

There are a lot of ways for dead stars to blow their tops. Astronomers discovered this explosive diversity when they assessed 3,628 exploding white dwarfs during a next-generation sky survey conducted using the Zwicky Transient Facility (ZTF) between March 2018 and December 2020. That means that this dataset of nearby supernovas is several times larger … Read more

Musk and Trump just repeated inaccurate claims of ‘stranded’ Starliner astronauts. NASA and the astronauts don’t agree

Two of the most powerful people in the world continue to push the “stranded astronaut” narrative. In a recent interview with Fox News’ Sean Hannity, SpaceX Founder and CEO Elon Musk and President Donald Trump were asked about the administration’s plans for space, their commitment to landing astronauts on Mars and the plan to “rescue,” … Read more

Cassiopeia the Queen reigns in the February sky

Cassiopeia: Five labeled stars linked with lines to make the letter W and two tiny, labeled clusters above, on blue background.

You can find Cassiopeia the Queen in the northwest in the evening around the month of February. It’s one of the easiest constellations to spot! It has the shape of an M or W. If you have a dark sky, you can also look above Cassiopeia for a famous binocular object, the Double Cluster in … Read more

DESI Found 300 Candidate Intermediate Mass Black Holes

This is Omega Centauri, the largest and brightest globular cluster that we know of in the Milky Way. An international team of astronomers used more than 500 images from the NASA/ESA Hubble Space Telescope spanning two decades to detect seven fast-moving stars in the innermost region of Omega Centauri. These stars provide compelling new evidence for the presence of an intermediate-mass black hole. Image Credit: ESA/Hubble & NASA, M. Häberle (MPIA)

If Intermediate-Mass Black Holes (IMBHs) are real, astronomers expect to find them in dwarf galaxies and globular clusters. There’s tantalizing evidence that they exist but no conclusive proof. So far, there are only candidates. The Dark Energy Spectroscopic Instrument (DESI) has found 300 additional candidate IMBHs. Logic says that IMBHs should exist. We know of … Read more