Top stories An epic fusion reactor life trapped in crystal and risky


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Country Country * Afghanistan Aland Islands Albania Algeria Andorra Angola Anguilla Antarctica Antigua and Barbuda Argentina Armenia Aruba Australia Austria Azerbaijan Bahamas Bahrain Bangladesh Barbados Belarus Belgium Belize Benin Bermuda Bhutan Bolivia, Plurinational State of Bonaire, Sint Eustatius and Saba Bosnia and Herzegovina Botswana Bouvet Island Brazil British Indian Ocean Territory Brunei Darussalam Bulgaria Burkina Faso Burundi Cambodia Cameroon Canada Cape Verde Cayman Islands Central African Republic Chad Chile China Christmas Island Cocos (Keeling) Islands Colombia Comoros Congo Congo, the Democratic Republic of the Cook Islands Costa Rica Cote d’Ivoire Croatia Cuba Curaçao Cyprus Czech Republic Denmark Djibouti Dominica Dominican Republic Ecuador Egypt El Salvador Equatorial Guinea Eritrea Estonia Ethiopia Falkland Islands (Malvinas) Faroe Islands Fiji Finland France French Guiana French Polynesia French Southern Territories Gabon Gambia Georgia Germany Ghana Gibraltar Greece Greenland Grenada Guadeloupe Guatemala Guernsey Guinea Guinea-Bissau Guyana Haiti Heard Island and McDonald Islands Holy See (Vatican City State) Honduras Hungary Iceland India Indonesia Iran, Islamic Republic of Iraq Ireland Isle of Man Israel Italy Jamaica Japan Jersey Jordan Kazakhstan Kenya Kiribati Korea, Democratic People’s Republic of Korea, Republic of Kuwait Kyrgyzstan Lao People’s Democratic Republic Latvia Lebanon Lesotho Liberia Libyan Arab Jamahiriya Liechtenstein Lithuania Luxembourg Macao Macedonia, the former Yugoslav Republic of Madagascar Malawi Malaysia Maldives Mali Malta Martinique Mauritania Mauritius Mayotte Mexico Moldova, Republic of Monaco Mongolia Montenegro Montserrat Morocco Mozambique Myanmar Namibia Nauru Nepal Netherlands New Caledonia New Zealand Nicaragua Niger Nigeria Niue Norfolk Island Norway Oman Pakistan Palestine Panama Papua New Guinea Paraguay Peru Philippines Pitcairn Poland Portugal Qatar Reunion Romania Russian Federation Rwanda Saint Barthélemy Saint Helena, Ascension and Tristan da Cunha Saint Kitts and Nevis Saint Lucia Saint Martin (French part) Saint Pierre and Miquelon Saint Vincent and the Grenadines Samoa San Marino Sao Tome and Principe Saudi Arabia Senegal Serbia Seychelles Sierra Leone Singapore Sint Maarten (Dutch part) Slovakia Slovenia Solomon Islands Somalia South Africa South Georgia and the South Sandwich Islands South Sudan Spain Sri Lanka Sudan Suriname Svalbard and Jan Mayen Swaziland Sweden Switzerland Syrian Arab Republic Taiwan Tajikistan Tanzania, United Republic of Thailand Timor-Leste Togo Tokelau Tonga Trinidad and Tobago Tunisia Turkey Turkmenistan Turks and Caicos Islands Tuvalu Uganda Ukraine United Arab Emirates United Kingdom United States Uruguay Uzbekistan Vanuatu Venezuela, Bolivarian Republic of Vietnam Virgin Islands, British Wallis and Futuna Western Sahara Yemen Zambia Zimbabwe Feature: The bizarre reactor that might save nuclear fusionTokamak or stellarator? That’s the question fusion enthusiasts are asking as a research lab in Germany prepares to flip the switch on the largest fusion device ever built, dubbed the “stellarator.” For Star Wars lovers, this epic construction device looks like Han Solo’s Millennium Falcon and sports some of the most complex engineering models ever devised. We’ll soon find out if the stellarator is strong enough to withstand the enormous forces and temperature ranges in order to surpass tokamaks in the effort to advance nuclear fusion.Scientists may have found the earliest evidence of life on Earthcenter_img Email When did life on Earth begin? A controversial new study presents potential evidence that traces of life arose more than 4 billion years ago. Clues lie hidden in microscopic flecks of graphite trapped inside a single large crystal of zircon found in the Jack Hills in Western Australia. These zircon crystals barely span the width of a human hair, but they are nearly indestructible and provide a rare glimpse into Earth’s earliest history.Designer antibodies may rid body of AIDS virusAnti-HIV drugs have extended life for millions of people, but they have never eliminated the virus from anyone because HIV integrates its genetic material into the chromosomes of some white blood cells, helping it escape notice of the immune system. New findings show that artificial antibodies could “redirect” the immune response to latently infected cells and help drain the HIV reservoirs into the body. The dual-action concept to reverse latency and then do the mop-up work is both promising and exciting, but it is also risky and won’t be tested in people for at least a year.Antiaging protein is the real deal, Harvard team claimsBack in the 1950s, a weird, vampiric experiment showed that connecting the circulatory systems of old and young mice seems to rejuvenate the more elderly animals. Given the millions of women (and men!) in the market for antiaging creams and pills, it’s no surprise that a handful of labs are racing to find just what might explain the mysterious experiment. Now, a team of Harvard scientists says that a protein called GDF11 is the answer to that puzzle.In Canada, election results cheer scientistsMany Canadian scientists are celebrating the result of this week’s federal election, which saw Stephen Harper’s Conservative government defeated after nearly a decade in power. Justin Trudeau won an unexpected majority government and will assume the role of Canada’s prime minister. Among other promises, the Liberal party has pledged to reinstate the position of chief scientific adviser, invest more in basic research, and to embrace “evidence based policy” and “data-driven decision-making.”3D printing soft body parts: A hard problem that just got easierHumans are squishy. That’s a problem for researchers trying to construct artificial tissues and organs, but a new 3D printer can make brains, veins, and more squishy parts by using hydrogels that provide structural support for the biological replicas as they’re being created. Once printed, the structures are stiff enough to support themselves, and they can be retrieved by melting away the supportive goo. This hard problem just got a lot softer! Q&A: Shining a light on sexual harassment in astronomyThe field of astronomy has been reeling since one of its most prominent members, exoplanet pioneer Geoff Marcy, was found guilty of sexual harassment. Pressure from BuzzFeed, University of California (UC), Berkeley, students and faculty, and the astronomy community persuaded Marcy to resign from his UC Berkeley professorship and other positions. Astronomer Joan Schmelz, previous chair of the American Astronomical Society’s Committee on the Status of Women in Astronomy, answers questions on Title IX and the burden it puts on young women who are victims of harassment. She also addresses the difficulty of tackling what she calls a “broken system” that breeds unprofessional behavior.Now that you’ve got the scoop on this week’s hottest science news, come back on Monday to test your smarts on our weekly quiz and enter for a chance to win a free Science T-shirt!last_img

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