Zinnia flowers are starting to grow in the International Space Station's Veggie facility as part of the VEG-01 investigation. Veggie provides lighting and nutrient supply for plants in the form of a low-cost growth chamber and planting "pillows” to provide nutrients for the root system. These plants appear larger than their ground-based counterparts and scientists expect buds to form on the larger plants soon.
NASA’s orbiter Cassini will make a series of decreasing orbits that will end in a fiery death dive into Saturn’s atmosphere in September. This deliberate termination of a still serviceable spacecraft is to comply with “planetary protection” protocols, designed to minimise the risk of depositing stowaway Earth microbes into an environment where they might be able to reproduce.
After 50 years of sending rockets, satellites, and payloads into orbit, humanity has created something of a “space junk” problem. Recent estimates indicate that there are more than 170 million pieces of debris up there, ranging in size from less than 1 cm (o.4 in) to a few meters in diameter. Not only does this junk threaten spacecraft and the ISS, but collisions between bits of debris can cause more to form, a phenomena known as the Kessler Effect.
Do you hate vegetables? You’re not alone. About 20% of the population are “super-tasters”. Super-tasters have more taste buds than other people and are super sensitive to the bitter compounds found in some food and drinks, even at low concentrations. If you have inherited super-taster genes then cruciferous vegetables (flower vegetables in the cabbage family) like bok choy, broccoli, Brussels sprouts, cauliflower, radish, swede, turnip, and watercress will taste disgusting.
Does science inspire fiction or does it work the other way around? In the case of medical technology, the long-running TV and film series Star Trek has increasingly been inspiring researchers worldwide. Two teams were recently awarded the Qualcomm Tricorder X Prize for developing handheld devices that can diagnose a range of diseases and check a patient’s vital signs without invasive tests – inspired by Star Trek’s medical “tricorder” device.
The satellite Micius, launched from Jiuquan, China, in August last year, is unlike any other in the sky. While other satellites communicate with Earth using physics worked out by James Clerk Maxwell 150 years ago, Micius is the world’s first quantum-enabled satellite. And now, it has conclusively proved its quantum credentials.
Research reported last week found “even moderate drinking” could “damage the brain”. Considering 78% of Australians over 14 years old drink alcohol, this is understandably concerning information.
If you have a blocked or runny nose, chances are you’ll reach for a tissue or hanky to clear the mucus by having a good blow.But is there a right way to blow your nose? Could some ways make your cold worse? And could you actually do some damage?
Scientists recently discovered the hottest planet ever found – with a surface temperature greater than some stars. As the hunt for planets outside our own solar system continues, we have discovered many other worlds with extreme features. And the ongoing exploration of our own solar system has revealed some pretty weird contenders, too. Here are seven of the most extreme.
When you consider that age of the Universe – 13.8 billion years by our most recent counts – and that which is “observable” to us measures about 27.6 billion light years in diameter, you begin to wonder why we haven’t found signs of extra-terrestrial intelligence (ETI) beyond our Solar System. To paraphrase Enrico Fermi, the 20th century physicists who advanced the famous Fermi Paradox – “where the heck are all the aliens?”
When you need to remember a phone number, a shopping list or a set of instructions, you rely on what psychologists and neuroscientists refer to as working memory. It’s the ability to hold and manipulate information in mind, over brief intervals. It’s for things that are important to you in the present moment, but not 20 years from now.