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Clues to Aging Found in Fruit Flies’ Stem Cells

A fruit fly (Drosophila melanogaster). Image credit: Sanjay Acharya / CC BY-SA 4.0.
Feb 15, 2018 by News Staff

Reproductive stem cells of male fruit flies (Drosophila melanogaster) use a genetic trick to stay perpetually young across generations, according to new research published in the journal eLife. A fruit fly (Drosophila melanogaster). Image credit: Sanjay Acharya / CC BY-SA 4.0. Certain sections of the fruit fly genome get shorter with age. But remarkably, some reproductive cells can repair the shrinkage. This genomic shrinkage may underlie aspects...

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Artist’s impression of the dusty gaseous torus around an active supermassive black hole. Image credit: ALMA / ESO / NAOJ / NRAO.

ALMA Spots Rotating Dusty Gaseous Torus around Messier 77’s Central Black Hole

Feb 15, 2018 by News Staff

High resolution observations using the Atacama Large Millimeter/submillimeter Array (ALMA) have revealed the presence of a rotating dusty gaseous torus...

Interventions aimed at reducing eating speed may be effective in preventing obesity and lowering the associated health risks. Image credit: StockSnap.

Eating Slowly May Help Prevent Obesity, Reduce Associated Health Risks: Study

Feb 15, 2018 by News Staff

Slowing down the speed at which you eat, along with cutting out after dinner snacks and not eating within two hours of going to sleep may all help prevent...

This image of NGC 3344 is a composite of separate exposures acquired by Hubble’s Wide Field Camera 3 (WFC3). Seven filters were used to sample various wavelengths. They cover wavelengths from the ultraviolet to the optical and the near-infrared. Together they create a detailed picture of the galaxy and allow astronomers to study many different aspects of it. Image credit: NASA / ESA / Hubble.

Hubble Space Telescope Observes Hidden Depths of NGC 3344

Feb 15, 2018 by News Staff

The NASA/ESA Hubble Space Telescope has captured a spectacular new image of NGC 3344, a face-on spiral galaxy. Hubble’s capacity to observe objects in...

Marseilleviridae particles; arrows indicate ‘large dense bodies.’ Image credit: Okamoto et al, doi: 10.1101/139097.

Giant Viruses May Have Played Important Role in Evolution of Life

Feb 14, 2018 by News Staff

Dr. Albert Erives, a biologist at the University of Iowa, has identified a virus family whose set of genes is similar to that of eukaryotes, an organism...

A system of three super-Earth exoplanets. Image credit: NASA / JPL-Caltech.

Astronomers Find One of Most Massive and Dense Super-Earths Yet: Gliese 9827b

Feb 14, 2018 by News Staff

A bright K-type dwarf star called Gliese 9827 hosts one of the most massive (and dense) super-Earths detected to date, according to a study to be published...

Finney et al find a 15% decrease in total lightning flash rate in 2100 under a strong global warming scenario.

Lightning May Strike Less Often in Future as Earth Warms, New Study Suggests

Feb 14, 2018 by News Staff

A team of researchers from Lancaster University and the Universities of Edinburgh and Leeds, UK, forecasts a 15% drop in the average number of lightning...

Footprints of Columbian mammoths (Mammuthus columbi), dated to 43,000 years ago, are seen in a portion of a trackway that was uncovered by Retallack et al in 2017 in an ancient dry lake bed in Lake County, Oregon. Image credit: Greg Shine, Bureau of Land Management.

Fossil Trackway Reveals Clues about Family Dynamics of Columbian Mammoths

Feb 14, 2018 by Enrico de Lazaro

Columbian mammoths (Mammuthus columbi) may have moved like modern elephants with infants in matriarchal groups. That’s according to a team of U.S. paleontologists...

This image, taken by NASA’s New Horizons spacecraft on December 5, 2017, shows the Kuiper Belt object 2012 HZ84. Image credit: NASA / JHUAPL / SwRI.

NASA’s New Horizons Spacecraft Captures Record-Breaking Images

Feb 14, 2018 by News Staff

With its Long Range Reconnaissance Imager (LORRI), New Horizons has observed several objects in the Kuiper Belt, a distant region of icy debris that extends...

Magnification of a lab-grown, fully matured human egg ready for fertilization. Image credit: University of Edinburgh.

Human Eggs Fully Grown in Laboratory for the First Time

Feb 13, 2018 by News Staff

A team of researchers led by the University of Edinburgh has grown human egg cells (oocytes) — which were removed from ovary tissue at their earliest...

Tylenol is one of the most recognizable brand names for acetaminophen (paracetamol). Image credit: Katy Warner / CC BY-SA 2.0.

Painkiller Acetaminophen Has Unexpected Effects on Regulation of Sex Hormones: Study

Feb 13, 2018 by News Staff

A study published in the journal EBioMedicine has shown the potentially negative impact of acetaminophen (paracetamol) — one of the most common medications...

Mars is kept company by two cratered moons -- an inner moon named Phobos and an outer moon named Deimos. Image credit: NASA / JPL-Caltech / Malin Space Science Systems / Texas A&M University.

Tiny Martian Moons Hint at Red Planet’s Adolescent Rejection

Feb 13, 2018 by James Romero

Like a teenage diary you can’t throw away, Mars might carry a reminder of its difficult formative years in its tiny moons. A paper published by the Royal...

Researchers have demonstrated that cells of naked mole rats (Heterocephalus glaber) undergo cellular senescence similarly to mouse cells but have distinct features that may explain the species’ low cancer and aging rates, such as being more resistant to DNA damage and undergoing metabolic reprogramming. Image credit: Benny Mazur / CC BY 2.0.

Resistance to DNA Damage and Downregulation of Metabolic Processes May Contribute to Low Cancer Rates in Naked Mole Rats

Feb 13, 2018 by Zvi Cramer

Scientists have revealed that senescent naked mole rat cells downregulate key metabolic processes and are more resistant to DNA damage than their mouse...

The new e-skin can be conformally mounted onto a human arm; it can be rehealed when it is damaged and can be fully recycled at room temperature. Image credit: Jianliang Xiao, University of Colorado Boulder.

Scientists Develop Rehealable, Fully Recyclable, and Malleable E-skin

Feb 13, 2018 by News Staff

An international team of scientists from Yunnan University and the University of Colorado Boulder has developed a new type of malleable, self-healing and...

This artist’s impression shows the first interstellar asteroid -- 1I/2017 U1 (’Oumuamua). Image credit: M. Kornmesser / ESO.

Interstellar Asteroid Oumuamua Had Violent Past, Say Researchers

Feb 12, 2018 by News Staff

1I/2017 U1 ‘Oumuamua, the first asteroid of extrasolar origin identified in our Solar System, has had a violent past which is causing it to tumble around...

Section from a kidney progenitor-derived mass harvested from a mouse intravenously injected with low-molecular-weight, fluorescein isothiocyanate-labeled dextran. Image credit: Bantounas et al, doi: 10.1016/j.stemcr.2018.01.008.

Researchers Create Functioning Human Kidney Tissue Using Stem Cells

Feb 12, 2018 by News Staff

An international research team led by University of Manchester scientists has generated human kidney tissue within a living organism which is able to produce...

This Hubble image shows the galaxy cluster PLCK G004.5-19.5. Image credit: NASA / ESA / Hubble / RELICS / D. Coe et al.

Hubble Snaps Beautiful Image of Giant Galaxy Cluster

Feb 12, 2018 by News Staff

NASA has released an absolutely beautiful photo taken by the NASA/ESA Hubble Space Telescope of PLCK G004.5-19.5, a massive cluster of galaxies in the...

Welch et al show for the first time that far-UVC efficiently inactivates airborne aerosolized viruses. These fluorescent images show epithelial cells infected with H1N1; the viruses were exposed in aerosolized form in the irradiation chamber to doses of 0, 0.8, 1.3 or 2.0 mJ/cm2 of 222-nm far-UVC light; infected cells fluoresce green. Image credit: Welch et al, doi: 10.1038/s41598-018-21058-w.

Study: Far Ultraviolet C Light Inactivates Airborne Viruses

Feb 12, 2018 by News Staff

Low doses of far ultraviolet C light can inactivate airborne influenza and other viruses without harming human tissues, according to a study published...

VLT map of gas within NGC 7252’s minispiral. Image credit: ESO / NASA / ESA / Hubble / J. Weaver et al.

ESO’s Very Large Telescope Observes Galaxy-Galaxy Merger Remnant

Feb 9, 2018 by News Staff

An unusual composite image created by ESO astronomers reveals the aftermath of a catastrophic collision between two similar disk galaxies, which happened...

(3122) Florence will pass safely by Earth on September 1, at a distance of about 4.4 million miles. Image credit: University of Colorado.

Two Asteroids Flew Safely Past Earth This Week

Feb 9, 2018 by News Staff

2018 CC and 2018 CB — two small asteroids recently discovered by NASA-funded astronomers — safely flew past our planet this week. This is an...

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