一。新闻简报。
1。上海（路透社）——上海周五表示，一旦隔离区外的病毒传播被遏制，将分批解除封锁。
2。中国和所罗门群岛都证实他们签署了一项安全协议，该协议引发了人们对中国在太平洋地区影响力上升的担忧。
3。美国陆军计划取得一种新型的便携式导弹，士兵可以用它来击落飞机。 为了取代陈旧的毒刺防空武器，陆军于 3 月 28 日提出了信息请求，并希望该武器在2027 年之前投入生产。
4。(CNN)——乌克兰总统泽连斯基宣布，美国国务卿安东尼·布林肯和美国国防部长劳埃德·奥斯汀将于周日访问基辅。
5。东京（美联社）——日本在周五发布的最新版外交报告中将与莫斯科有争议的四个岛屿描述为“被俄罗斯非法占领”，使用比其他最新版本更强烈的语言来描述领土变动，并强调了在俄罗斯入侵乌克兰期间两国的冷淡关系。
6。上海当局表示，随着上海疫情继续激增，他们将加强封锁措施的执行。新措施包括放置电子门警报，以防止感染者离开，以及疏散人们以对房屋进行消毒。
7。卫生署香港卫生防护中心（CHP）昨天宣布，内地新增一宗人类感染甲型禽流感（H5N6）病例，这是2022年以来的第13例。该病例涉及四川省德阳市一名56岁男性，发病前曾接触过活家禽。 他于 3 月 31 日出现症状，并于 4 月 4 日入院接受治疗。他的情况严重。
8。4 月 22 日发表在《柳叶刀呼吸医学》杂志上的一项研究表明，辉瑞 COVID-19 疫苗的加强剂量在最初几个月内提供了大约 80% 至 90% 的强保护，以防止因三角洲和 omicron 变体。 然而，对于 omicron，这种保护会随着时间的推移而减弱——即使在第三剂之后也是如此。
9。专家说，中国严格的 COVID-19 封锁将加剧全球供应链的困境，并在未来几个月加剧通胀。
10。法国将于 4 月 24 日星期日进行第二轮也是最后一轮总统选举的投票。 虽然伊曼纽尔·马克龙似乎有可能获得第二个任期，但其竞争对手、极右翼国家拉力党的玛丽娜·勒庞却一直紧随其后。 在竞选活动的某一时刻，她仅落后总统 3 个百分点。
11。英国国会议员获悉，据信，私营军事公司瓦格纳集团的近 3,000 名成员在乌克兰战场上为俄罗斯而战时丧生。
12。世界卫生组织周五表示，它“强烈推荐”辉瑞公司的 Covid-19 抗病毒药 Paxlovid ，用于仍有高住院风险的轻度疾病患者。
13。上海居民告诉自由亚洲电台，在影响约 2600 万人的严酷 COVID-19 封锁期间，神秘的栅栏，在一夜之间出现，封锁了上海的城市通道。
14。图宾根大学医院的一组德国研究人员开发了一种名为 CoVac-1 的新型 COVID 疫苗，其在免疫功能低下的白血病和淋巴瘤等癌症患者中产生了强烈的免疫反应。
15。孟加拉国达卡（美联社）——周五，数千名伊斯兰组织成员在孟加拉国首都集会，抗议瑞典最近发生的暴力事件，其中涉及一个反穆斯林极右翼组织，以及耶路撒冷阿克萨清真寺发生的新冲突。
二．美国疫情
昨日美国新增新冠患者_人
总确诊人数为80,971,925人。
新增死亡人数1,005人。
总死亡 991,231人。
康州新增新冠感染1,150人，新增死亡8人。
纽约州新增新冠确诊人数8,475人。新增死亡人数10人。
新泽西州昨天新增病例为2,870人。新增死亡为8人。
马萨诸塞州新增新冠患者为2,473人, 死亡3人。
马里兰州昨日新增新冠患者1,015人。新增死亡人数为4人。
三．世界疫情
1） 亚洲疫情：
昨日印度新增新冠患者2,527人；
日本新增42,898人；
印尼新增651人；
菲律宾新增229人；
孟加拉新增21人。
土耳其新增2,898人。
台湾昨日新增_.
韩国昨日新增_人,
中国新增19,027人。
2）非洲疫情：
南非昨日新增新冠患者24,629人。
埃塞俄比亚新增16人。
摩洛哥新增47人。
3）拉美疫情：
巴西昨日新增新冠患者8,068人.
哥伦比亚新增283人。
阿根廷新增_人。
智利新增2,949人。
墨西哥新增_人。
4）欧洲疫情
俄罗斯昨日新增新冠患者8,843人。
德国新增135,079人。
法国新增88,520人。
英国新增23,932人。
意大利新增73,744人。
西班牙新增_人。
5）全球新冠总感染人数为509,116,073人。
总死亡人数为6,216,725人。
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What’s on board this flight
Blue Origin had planned to launch a pair of Mars-bound satellites on behalf of NASA for the first flight of New Glenn.
But delays with the rocket’s development prompted the space agency to change course, moving that flight to this spring at the earliest. So for this inaugural flight, Blue Origin opted to instead fly a “demonstrator” that will test technology needed for the company’s proposed Blue Ring spacecraft — which will aim to serve as a sort of in-space rideshare vehicle, dragging satellites deeper into space when needed.
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The demonstrator on this New Glenn flight will remain aboard the rocket for the entire six-hour flight, Blue Origin said, and it will validate “communications capabilities from orbit to ground” as well as “test its in-space telemetry, tracking and command hardware, and ground-based radiometric tracking.”
The Blue Ring Pathfinder demonstrator is part of a deal Blue Origin inked with the US Department of Defense’s Defense Innovation Unit.
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Why Blue Origin wants to reuse rockets
Similar to SpaceX, Blue Origin is aiming to recover and refly its first-stage rocket boosters in a bid to make launches less expensive.
“Reusability is integral to radically reducing cost-per-launch,” the company said in a recent news release, using the same oft-repeated sentiment that SpaceX has touted since it began landing rocket boosters in 2015.
Bezos, however, has acknowledged the importance of reusing rocket parts since he founded the company in 2000 — two years before Musk established SpaceX. And the company has already developed its suborbital New Shepard tourism rocket to be reusable.
“It’s not a copy cat game,” Henry said. “Blue Origin has been pursuing reusable vehicles since before reusable vehicles were cool. Now it’s much more of a mainstream idea (because of SpaceX). The difference is that it’s taken Blue Origin so much longer to get to orbit.”
If successful, returning the New Glenn rocket booster for a safe landing will be a stunning feat. After expending most of its fuel to propel the rocket’s upper stage to space, the first-stage booster will need to make a clean separation. The booster must then maneuver with pinpoint guidance and reignite its engines with precision timing to avoid crashing into the ocean or the Jacklyn recovery platform.
What New Glenn will do
In some ways, New Glenn has already made its mark on the launch industry. Blue Origin has for years pitched the rocket to compete with both SpaceX and United Launch Alliance — a joint venture of Boeing and Lockheed Martin that buys engines from Blue Origin — for lucrative military launch contracts.
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The US Space Force selected Blue Origin, ULA and SpaceX in June to compete for $5.6 billion worth of Pentagon contracts for national security missions slated to launch over the next four years.
Blue Origin also has deals with several commercial companies to launch satellites. The contracts include plans to help deploy Amazon’s Kuiper internet satellites and a recently inked deal with AST SpaceMobile to help launch the Midland, Texas-based company’s space-based cellular broadband network.
New Glenn could also be instrumental in building Blue Origin’s planned space station, called Orbital Reef. Blue Origin and it commercial partners, including Sierra Space and Boeing, among others, hope the station will one day provide a new destination for astronauts as the International Space Station is phased out of service.
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New Glenn vs. other powerful rockets
New Glenn packs significant power. Dubbed a “heavy-lift” vehicle, its capabilities lie between SpaceX’s Falcon 9 rocket and the more powerful Falcon Heavy launch vehicle.
SpaceX’s workhorse Falcon 9, for example, can haul up to 22.8 metric tons (50,265 pounds) to space. While New Glenn is capable of carrying about double that mass, it may also be roughly the same price as a Falcon 9: reportedly around $60 million to $70 million per launch.
“I think in order to compete with Falcon 9, you have to go head-to-head or better on price,” said Caleb Henry, the director of research at Quilty Space, which provides data and analysis about the space sector.
The question, however, is whether Blue Origin will be able to sustain a competitive price point, Henry added.
Still, one feature that makes New Glenn stand out is its large payload fairing, or nose cone. The component protects the cargo bay and is a whopping 23 feet (7 meters) wide — nearly 6 feet (2 meters) larger than that of SpaceX’s Falcon 9 or Falcon Heavy.
Henry said Blue Origin likely opted to outfit New Glenn with such a large fairing in order to help fulfill Bezos’ vision of the future.
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New Glenn’s first flight
Blue Origin formally announced the development of New Glenn — which aims to outpower SpaceX’s Falcon 9 rockets and haul spacecraft up to 45 metric tons (99,200 pounds) to orbit — in 2016.
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The vehicle is long overdue, as the company previously targeted 2020 for its first launch.
Delays, however, are common in the aerospace industry. And the debut flight of a new vehicle is almost always significantly behind schedule.
Rocket companies also typically take a conservative approach to the first liftoff, launching dummy payloads such as hunks of metal or, as was the case with SpaceX’s Falcon Heavy debut in 2018, an old cherry red sports car.
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Blue Origin has also branded itself as a company that aims to take a slow, diligent approach to rocket development that doesn’t “cut any corners,” according to Bezos, who founded Blue Origin and funds the company.
The company’s mascot is a tortoise, paying homage to “The Tortoise and the Hare” fable that made the “slow and steady wins the race” mantra a childhood staple.
“We believe slow is smooth and smooth is fast,” Bezos said in 2016. Those comments could be seen as an attempt to position Blue Origin as the anti-SpaceX, which is known to embrace speed and trial-and-error over slow, meticulous development processes.
But SpaceX has certainly won the race to orbit. The company’s first orbital rocket, the Falcon 1, made a successful launch in September 2008. The company has deployed hundreds of missions to orbit since then.
And while SpaceX routinely destroys rockets during test flights as it begins developing a new rocket, the company has a solid track record for operational missions. SpaceX’s Falcon 9 rocket, for example, has experienced two in-flight failures and one launchpad explosion but no catastrophic events during human missions.
A year ago today, things went from bad to worse for Boeing
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At 5 p.m. PT on January 5, 2024, Boeing seemed like a company on the upswing. It didn’t last. Minutes later, a near-tragedy set off a full year of problems.
As Alaska Airlines flight 1282 climbed to 16,000 feet in its departure from Portland, Oregon, a door plug blew out near the rear of the plane, leaving a gaping hole in the fuselage. Phones and clothing were ripped away from passengers and sent hurtling into the night sky. Oxygen masks dropped, and the rush of air twisted seats next to the hole toward the opening.
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Fortunately, those were among the few empty seats on the flight, and the crew got the plane on the ground without any serious injuries. The incident could have been far worse — even a fatal crash.
Not much has gone right for Boeing ever since. The company has had one misstep after another, ranging from embarrassing to horrifying. And many of the problems are poised to extend into 2025 and perhaps beyond.
The problems were capped by another Boeing crash in South Korea that killed 179 people on December 29 in what was in the year’s worst aviation disaster. The cause of the crash of a 15-year old Boeing jet flown by Korean discount carrier Jeju Air is still under investigation, and it is quite possible that Boeing will not be found liable for anything that led to the tragedy.
But unlike the Jeju crash, most of the problems of the last 12 months have clearly been Boeing’s fault.
And 2024 was the sixth straight year of serious problems for the once proud, now embattled company, starting with the 20-month grounding of its best selling plane, the 737 Max, following two fatal crashes in late 2018 and early 2019, which killed 346 people.
Still the outlook for 2024 right before the Alaska Air incident had been somewhat promising. The company had just achieved the best sales month in its history in December 2023, capping its strongest sales year since 2018.
It was believed to be on the verge of getting Federal Aviation Administration approval for two new models, the 737 Max 7 and Max 10, with airline customers eager to take delivery. Approvals and deliveries of its next generation widebody, the 777X, were believed to be close behind. Its production rate had been climbing and there were hopes that it could be on the verge of returning to profitability for the first time since 2018.
On a long-dormant pad in Florida, a rocket that could challenge SpaceX’s dominance is poised to launch
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On a Florida launchpad that has been dormant for almost two decades, a new, roughly 320-foot (98-meter) rocket — developed by Jeff Bezos’ company Blue Origin — is poised for its maiden flight.
The uncrewed launch vehicle, called New Glenn, will mark Blue Origin’s first attempt to send a rocket to orbit, a feat necessary if the company hopes to chip away at SpaceX’s long-held dominance in the industry.
New Glenn is set to lift off from Cape Canaveral Space Force Station as early as next week.
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The rocket, which stands about as tall as a 30-story building, consists of several parts: The first-stage rocket booster gives the initial thrust at liftoff. Atop the booster is an upper rocket stage that includes a cargo bay protected by a nose cone that will house experimental technology for this mission.
And, in an attempt to replicate the success that SpaceX has found reusing rocket boosters over the past decade, Blue Origin will also aim to guide New Glenn’s first-stage rocket booster back to a safe landing on a seafaring platform — named Jacklyn for Bezos’ mother — minutes after takeoff.
Like SpaceX, Blue Origin will seek to recover, refurbish and reuse first-stage rocket boosters to drive down costs.
For this inaugural mission, a smooth flight is not guaranteed.
But the eventual success of New Glenn, named after storied NASA astronaut John Glenn, is instrumental to some of Blue Origin’s most ambitious goals.
The rocket could one day power national security launches, haul Amazon internet satellites to space and even help in the construction of a space station that Blue Origin is developing with commercial partners.
Scientists have identified an estimated 10% of all species on Earth. Here’s what they found in 2024
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A toothy toadstool. A vegetarian piranha with a distinctive mark. And a pygmy pipehorse floating in the Indian Ocean shallows.
These wild wonders were among the hundreds of previously unknown species of animals, plants and fungi that scientists named and described for the first time in 2024, expanding our surprisingly limited knowledge of Earth’s diversity.
“Scientists estimate that we’ve identified only one-tenth of all species on Earth,” said Dr.
Shannon Bennett, chief of science at the California Academy of Sciences, in a statement.
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“While it is critical to place protections on known threatened species, we must also allocate resources towards identifying unknown species that may be just as important to the functioning of an ecosystem,” Bennett said.
Researchers connected to the institution described 138 new species in 2024, including 32 fish. One standout was a pygmy pipehorse named Cylix nkosi. The seahorse relative was originally found in 2021 in the cool temperate waters surrounding the North Island of New Zealand, but the species described this year was discovered in the subtropical waters off South Africa, expanding the known range of this group to the Indian Ocean
“South African reefs present notoriously difficult diving conditions with rough weather and intense, choppy waves — we knew we only had one dive to find it,” underwater photographer and marine biologist Richard Smith said in a statement.
“This species is also quite cryptic, about the size of a golf tee, but luckily we spotted a female camouflaged against some sponges about a mile offshore on the sandy ocean floor.”
The researchers involved in describing the new species chose nkosi as its name. A reference to the local Zulu word for “chief,” the name reflects the species’ crown-like head shape and acknowledges South Africa’s KwaZulu-Natal province where it was found.