Astronomy News

Physicists Suggest Existence of New Type of Dark Energy

This artist’s impression shows the evolution of the Universe beginning with the Big Bang on the left followed by the appearance of the Cosmic Microwave Background. The formation of the first stars ends the cosmic dark ages, followed by the formation of galaxies. Image credit: M. Weiss / Harvard-Smithsonian Center for Astrophysics.
Mar 3, 2021 by News Staff

Recent measurements of the expansion rate of the Universe have plunged the standard model of cosmology, the ΛCDM model, into a crisis. In a new paper published in the journal Physical Review D, a duo of physicists at the University of Southern Denmark proposes a simple resolution to this problem. This artist’s impression shows the evolution of the Universe beginning with the Big Bang on the left followed by the appearance of the Cosmic Microwave...

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This Hubble image shows NGC 2336, a barred spiral galaxy located 109 million light-years away in the constellation of Camelopardalis. The color image was made from separate exposures taken in the visible and near-infrared regions of the spectrum with Hubble’s Advanced Camera for Surveys (ACS). Three filters were used to sample various wavelengths. The color results from assigning different hues to each monochromatic image associated with an individual filter. Image credit: NASA / ESA / Hubble / V. Antoniou / Judy Schmidt.

Hubble Snaps Breathtaking New Image of NGC 2336

Mar 1, 2021 by Enrico de Lazaro

The NASA/ESA Hubble Space Telescope has produced this beautiful image of the barred spiral galaxy NGC 2336. This Hubble image shows NGC 2336, a barred...

SN 1987A: the panel on the left contains a 3D computer simulation, based on Chandra data, of the supernova debris from SN 1987A crashing into a surrounding ring of material; the artist’s illustration (right panel) depicts a so-called pulsar wind nebula, a web of particles and energy blown away from a pulsar, which is a rotating, highly magnetized neutron star. Image credit: NASA / Chandra / CXC / University di Palermo / E. Greco / INAF-Osservatorio Astronomico di Palermo / Salvatore Orlando.

Astronomers Finally Find Neutron Star in Famous Supernova Remnant

Feb 26, 2021 by News Staff

Supernova 1987A (SN 1987A) was first observed on February 23, 1987 in a nearby dwarf galaxy, the Large Magellanic Cloud, some 164,000 light-years away....

An artist’s impression of an intermediate-mass black hole. Image credit: Sci-News.com.

Supermassive Black Holes Could Form from Dark Matter

Feb 24, 2021 by News Staff

Theoretical physicists from Italy, Spain and Argentina propose a new mechanism for the creation of supermassive black holes from dark matter. Galaxy halos...

A view of the accretion disk around the supermassive black hole, with jet-like structures flowing away from the disk. The extreme mass of the black hole bends spacetime, allowing the far side of the accretion disc to be seen as an image above and below the black hole. Image credit: Science Communication Lab, DESY.

Astrophysicists Detect High-Energy Neutrino from Tidal Disruption Event

Feb 24, 2021 by News Staff

The majority of supermassive black holes lie dormant and starved of fuel; these hidden giants can be temporarily illuminated when an unlucky star passes...

An artist’s impression showing the increasing effect of ram-pressure stripping in removing gas from the spiral galaxy NGC 4921 and its satellite galaxies. Image credit: ICRAR / NASA / ESA / Hubble Heritage Team / STScI / AURA.

Large Galaxies Strip Molecular Gas from Their Satellites

Feb 23, 2021 by News Staff

A research team led by International Centre for Radio Astronomy Research (ICRAR) astronomers has studied the molecular-gas content of nearby massive galaxies...

An artist’s impression of a water-world exoplanet. Image credit: Sci-News.com.

Aquatic Planets are Common in Our Milky Way Galaxy, Study Suggests

Feb 23, 2021 by News Staff

In a study published in the journal Science Advances, a team of European astronomers shows that water can be delivered to a terrestrial planet in the form...

This image from the SPHERE instrument on ESO’s Very Large Telescope shows the protoplanetary disk around SU Aur. Image credit: ESO / Ginski et al.

SPHERE Spots Giant Planet-Forming Disk around Young Star

Feb 23, 2021 by Enrico de Lazaro

The SPHERE instrument on ESO’s Very Large Telescope (VLT) has taken the most detailed image so far of the 5-million-year-old protoplanetary system SU...

An artist’s impression of the super-Earth planet Gliese 740b and its parent star. Image credit: Sci-News.com.

Hot Super-Earth Found around Gliese 740

Feb 22, 2021 by Natali Anderson

A team of astronomers from Spain, Italy and Germany has discovered a short-period super-Earth exoplanet circling the nearby red dwarf Gliese 740. An artist’s...

This Hubble image shows Messier 64, a spiral galaxy located some 17 million light-years away in the constellation of Coma Berenices. This color composite was made from separate exposures taken in the visible, near-infrared and ultraviolet regions of the spectrum with Hubble’s Wide Field Camera 3 (WFC3). Five filters were used to sample various wavelengths. The color results from assigning different hues to each monochromatic image associated with an individual filter. Image credit: NASA / ESA / Hubble / J. Lee / PHANGS-HST Team / Judy Schmidt, www.geckzilla.com.

Hubble Space Telescope Observes Messier 64

Feb 22, 2021 by Enrico de Lazaro

NASA has released a stunning image snapped by the NASA/ESA Hubble Space Telescope of the spiral galaxy Messier 64. This Hubble image shows Messier 64,...

An artist’s impression of the Cygnus X-1 binary system. Image credit: International Centre for Radio Astronomy Research.

Cygnus X-1’s Stellar-Mass Black Hole is More Massive than Astronomers Thought

Feb 19, 2021 by News Staff

A black hole in the Cygnus X-1 binary system is so massive that it challenges current stellar evolution models. An artist’s impression of the Cygnus...

3D reconstruction of the Crab Nebula remnant as seen from Earth (left), and from another point of view showing its heart-shaped morphology (right). Image credit: Martin et al., doi: 10.1093/mnras/staa4046.

Crab Nebula Has ‘Honeycomb Heart,’ Astronomers Say

Feb 18, 2021 by News Staff

New images captured by the SITELLE instrument on the Canada-France-Hawaii telescope (CFHT) in Mauna Kea, Hawaii, reveal an intricate honeycomb-like arrangement...

Astronomers Find Two-Planet System around Backward-Spinning Star

Feb 17, 2021 by Natali Anderson

K2-290A, the primary star in the triple stellar system K2-290, is tilted by 124 degrees compared with the orbits of both of its known planets, and has...

The Chicxulub asteroid hit Earth at an angle of about 60 degrees, which is among the worst-case scenarios for the lethality of the impact by the production of climate-changing gases. Image credit: Chase Stone.

Novel Theory Explains Possible Origin of Dinosaur-Killing Chicxulub Impactor

Feb 16, 2021 by News Staff

At the end of the Cretaceous period, about 66 million years ago, a 10-km impactor crashed into Earth near the site of the small town of Chicxulub in what...

This illustration sketches out the main features of the TOI-451 system. Image credit: NASA’s Goddard Space Flight Center.

TESS Discovers Three Planets in Triple-Star System TOI-451

Feb 16, 2021 by Natali Anderson

Astronomers using NASA’s Transiting Exoplanet Survey Satellite (TESS) have discovered a trio of hot planets orbiting a much younger version of our Sun...

This Hubble image shows two Herbig-Haro objects HH46 and HH47. The color image was made from separate exposures taken in the visible and infrared regions of the spectrum with Hubble’s Wide Field Camera 3 (WFC3). It is based on data obtained through six filters. The color results from assigning different hues to each monochromatic image associated with an individual filter. Image credit: NASA / ESA / Hubble / B. Nisini.

Hubble Captures Two Beautiful Herbig-Haro Objects

Feb 15, 2021 by Enrico de Lazaro

A new image taken with the NASA/ESA Hubble Space Telescope show HH46 and HH47, two Herbig-Haro objects — small-scale shock regions associated with...

The starburst galaxy ALESS 073.1 is seen as it was about 1.2 billion years after the Big Bang. Image credit: Cardiff University.

Galaxy Evolution is Much Faster Process than Previously Thought

Feb 12, 2021 by News Staff

ALESS 073.1, a star-forming galaxy located 12.5 billion light-years away, has all of the features expected of a much more mature galaxy and has led astronomers...

Alkali Metals from Rocky Planets Found in Atmospheres of Nearby White Dwarfs

Feb 12, 2021 by News Staff

Astronomers have detected lithium in the atmospheres of four cool and old white dwarfs, of which one also displayed atmospheric potassium. The relative...

An artist’s impression of a group of stellar-mass black holes in the center of NGC 6397. Image credit: NASA / ESA / Hubble / N. Bartmann.

Astronomers Find Large Group of Stellar-Mass Black Holes in NGC 6397

Feb 11, 2021 by News Staff

Astronomers using the NASA/ESA Hubble Space Telescope have found evidence for dozens of stellar-mass black holes lurking in the core-collapsed, globular...

Solar system distances to scale, showing 2018 AG37 compared to other known solar system objects, including the previous record holder 2018 VG18. Image credit: Roberto Molar Candanosa / Scott S. Sheppard, Carnegie Institution for Science / Brooks Bays, University of Hawai’i.

Solar System’s Most Distant Object Confirmed

Feb 11, 2021 by News Staff

Nicknamed ‘Farfarout’ and officially designated 2018 AG37, the newly-confirmed planetoid has a very elongated orbit that takes it out to 175 AU (astronomical...

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