Nuclear bombs. That’s the go-to answer for incoming space objects like asteroids(小行星) and comets, as far as Hollywood is concerned. Movies like Deep Impact and Armageddon rely on nuclear weapons, delivered by stars like Bruce Willis, to save the world and deliver the drama.

But planetary defense experts say in reality, if astronomers spotted a dangerous incoming space rock, the safest and best answer might be something unnoticeable, like simply pushing it off course by crashing it with a small spacecraft.

That’s just what NASA did on Monday evening, when a spacecraft headed direct into an asteroid called Dimorphos, which is around 7 million miles away and poses no threat to Earth. It’s about 525 feet across and orbits another larger asteroid.

In images streamed as the impact neared, the egg-shaped asteroid grew in size from a little spot on screen to have its full rocky surface come quickly into focus before the signal went dead as the spacecraft hit right on target.

Events happened exactly as engineers had planned, they said, with nothing going wrong. “As far as we can tell, our first planetary defense test was a success,” said Elena Adams, the mission systems engineer, who added that scientists looked on with “both terror and joy” as the spacecraft neared its final destination.

The impact was the peak of NASA’s Double Asteroid Redirection Test (DART), a 7-year and more than $300 million effort which launched a space vehicle in November of 2021 to perform humanity’s first ever test of planetary defense technology. It will be about two months, scientists said, before they will be able to determine if the impact was enough to drive the asteroid slightly off

NASA plans to launch an asteroid-hunting space telescope named NEO Surveyor in 2026. “We’ve tracked lots of space rocks, especially the larger ones that could cause extinction-level events. Thankfully, none currently threaten Earth. But many asteroids the size of Dimorphos haven’t yet   been discovered, and those could potentially take out a city if they came crashing down.” explains Lindley Johnson, NASA’s Planetary Defense Officer.

E-Sports,short for electronic sports,is one of the growing industries in the world,with prizes totaling around $25 million up for grabs in some tournaments. E-Sports are professional multiplayer video game competitions. Any video game with a strong competitive element is considered e-Sports.The competition models itself after traditional professional sports in several ways: it uses corresponding tournament formats,involves player contracts, and is governed by regulations. The athletes who compete in e-Sports competitions are gamers．

The history of e-Sports dates back to 1972 when some Stanford University students competed in the Intergalactic Space War Olympics for the opportunity to win a one-year subscription to the Rolling Stone Magazine. E-Sports pretty much continued on the rather quiet path until the 80s when competitions like the Space Invaders Championship shot them to the spotlight. 2002 marked the beginning of a new era for the sport and laid the foundation for what e-Sports would become thanks to the release of the Xbox live, which brought online play to consoles. Halo Ⅱ became the first game to be shown on national television for Major League Gaming in 2004, paving the way for e-Sports to become a global phenomenon.

Today, e-Sports are growing at a rapid pace thanks to advance in technology and the arrival   of streaming services like Twitch which have exposed video game competitions to a new audience due to their extensive reach.

To understand how much impact Twitch has made, data from gaming analyst group Newzoo show that e-Sports global audience increased 43 percent from 204 million to 292 million between 2014 and 2016. Interestingly, this coincides (一致) with Amazon's acquisition of Twitch in 2014 and its effort to make the competition a spectator sport.

When you go to the doctor, you receive a diagnosis(诊断)and a treatment. However, with the continued use of technology in healthcare, the process of diagnosing and treating patients has been changing.

Artificial Intelligence(AI)can help doctors analyze a patient’s symptoms and offer the best treatment. With new advancements in medical technology, it makes receiving medical care faster and more accurate. Technology companies provide the data analyzing tools that are necessary to analyze the efficiency of the healthcare system, which makes the care better and more efficient and improves the quality of care. Technology is also being used to help patients achieve their health goals as well as help patients when doctors are not present. Patients can rely on apps, trackers, and programs to remind them to have themselves checked, track their symptoms or call for help.

In the United States, the creation of AI technology has done better than that of other countries. However, compared to some countries like Canada in using AI into the healthcare system, the United States has bungled. The reality is that AI is not used in medical care because of the high costs and the structure of insurance. It is the private healthcare system that puts all the costs on consumers of healthcare.

Undoubtedly, using more technology into healthcare can be better for the system. It can improve efficiency, limit errors, and cut down waiting time. But the high cost of creating this technology can make it difficult to provide service in every hospital and healthcare clinic in the United States. It also changes the practice of medicine, making it less personal and more about the technology. Now, doctors wouldn’t have to rely on their own knowledge and skill but could turn to robots and computers for help or use better equipment to help them perform a procedure.

As the medical field continues to change, so will the technology that is used in the medical field, making receiving medical care a highly computerized process that could improve the health of the population.