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Velvet ants, despite their name, are not ants but parasitic wasps known for their painful stings. These insects, often called “cow killers” due to the intensity of their sting, possess a potent venom capable of acting on different molecular targets depending on the species they encounter. Their defensive mechanisms, which include venom, warning colours, tough exoskeletons, and unique sounds when threatened, have made them nearly invincible to predators. This versatility has intrigued researchers studying their venom’s effects on various creatures.

Study Highlights Dual Mechanisms in Velvet Ant Venom

According to a study published in Current Biology, velvet ant venom operates differently across species. Researchers, including Lydia Borjon, a sensory neurobiologist at Indiana University Bloomington, found that distinct peptides in the venom affect mammals and insects in unique ways. Experiments conducted on the venom of the scarlet velvet ant (Dasymutilla occidentalis) revealed that specific peptides target sensory neurons differently in insects and mammals.

As reported in Science News, in insects, a peptide called Do6a specifically activates neurons sensitive to harmful stimuli. However, in mammals such as mice, pain is triggered by two less abundant peptides, Do10a and Do13a. These peptides activate a broad range of sensory neurons, inducing a generalised pain response. The findings suggest that velvet ants’ venom tailors its effects based on the biology of the recipient, showcasing a rare example of multi-target venom.

Broader Implications of the Research

Joseph Wilson, an evolutionary ecologist at Utah State University, noted to Science News, that velvet ants’ extensive defensive arsenal could be linked to evolutionary pressures from unknown predators, particularly insects. He suggested that while their venom effectively deters a wide range of species, its evolution might have been influenced by specific ecological interactions. Sam Robinson, a toxinologist at the University of Queensland, highlighted that this type of broad-spectrum venom, though rare, may not be unique, as most venoms are tested on limited species.

The study provides new insights into venom evolution and raises questions about the ecological factors driving the development of such complex defensive strategies.

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SpaceX Fires Up Starship Upper Stage for Ninth Test Flight in Static Fire Trial

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May 15, 2025

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SpaceX Fires Up Starship Upper Stage for Ninth Test Flight in Static Fire Trial

SpaceX’s next-generation Starship spacecraft has fired up in another test as the company prepares for its ninth flight. Starship conducted a full-duration static fire of its upper stage at the Starbase facility in South Texas on May 12th. The 171-foot-tall (52-metre) vehicle fired all six of its mighty Raptor engines for the full-duration burn, which took about 60 seconds. This marked the third such static fire for this specific ship, which is now undergoing final checks. SpaceX shared video and images of the trial in a post on X the following day.

Starship Nears Ninth Launch as SpaceX Advances Toward Mars-Ready Reusability

As per a Space.com report, the static fire is one of the last key milestones before the vehicle’s upcoming launch, though no date has yet been announced. The booster assigned to Flight 9 has already conducted a static fire test, sparking talk it may only be weeks from flight. Fully stacked, Starship stands 403.5 feet, making it the most powerful rocket system ever assembled. Its super-heavy booster and ship upper stage are intended for full reuse, a requirement for voyages to the moon, Mars, and beyond.

Starship has completed eight test flights to date, two of them in 2025. Though the missions themselves blasted off without a hitch, the ship’s upper stage flubbed both times shortly after arriving in space. During those flights, Super Heavy managed to fly back to Starbase and land with the aid of its giant launch tower’s “chopstick” arms in a dramatic manoeuvre that was one of a kind for SpaceX’s rocket-catching system. But both times the ship exploded less than 10 minutes after launch, a failure that has raised concerns about the stability of that upper stage.

SpaceX Starship, the Mars colonisation spacecraft, has now completed more than one full static fire test run, and it is expected to be a fully reusable spacecraft after the next test flight. Until then, space watchers will have to keep waiting for progress at Starbase. The ninth launch of this giant vehicle is probably not too far off if SpaceX continues to evolve and test at the pace they are going.

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Hikers Stumble Upon 600 Gold Coins in Czech Forest Near Polish Border

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May 15, 2025

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Hikers Stumble Upon 600 Gold Coins in Czech Forest Near Polish Border

Two hikers accidentally discovered a treasure trove in Czech Republic . While taking a stroll in the forests surrounding Zvičina Hill in the Krkonoše Mountains near Poland’s border, they spotted an aluminium can and an iron box protruding slightly above the surface in a stone mound. The containers contained about 600 gold coins and a stunning assortment of gold artifacts. Discovery of this treasure worth more than $340,000 has drawn attention of researchers, arising questions about both the origin of the coins and how did they end up in such a remote location.

Tracing the origin of coins

According to the report by Vojtěch Brádle, a numismatist from the Museum of Eastern Bohemia, the majority of the coins were minted between 1808 and 1915. They originate from the Austria-Hungarian Empire, particularly under the reign of Emperor Franz Joseph I. Some of the coins feature countermarks minted in the Kingdom of Serbs, Croats, and Slovenians after the collapse of the Austro-Hungarian Empire.

The 598 coins cover a broad historical period, containing currency from France, Belgium, the Ottoman Empire, and Russia too. The range of provenances makes it difficult to track how the coins got to where they were, or just why they were stashed away at all. “It is hard to say whether it was Czech, German, or Jewish gold,” said Petr Grulich, director of the Museum of Eastern Bohemia, according to Dailymail.

Theories about the hiding place

There are several theories and speculation about how these coins and artifacts were hidden in such a remote location. One theory suggests that the items were concealed during Nazi Germany’s occupation of Czechoslovakia.

Following the Munich Agreement of 1938, large numbers of Jews and Czechs fled their homes in the annexed Sudetenland to escape persecution. Some historians believe that the treasure was buried during this time in an effort to protect it from the invading Nazi forces.

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NASA’s IMAP Spacecraft Prepares to Map the Solar System’s Edge

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May 15, 2025

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NASA’s IMAP Spacecraft Prepares to Map the Solar System’s Edge

On may 10th, a semitrailer delivered NASA’s Interstellar Mapping and Acceleration Probe or IMAP to the Astrotech space operations facility all the way from NASA’s Marshall Space Flight Center in Huntsville, Alabama. The IMAP mission is a modern-day celestial cartographer that will map the solar system by studying the heliosphere, a giant bubble created by the Sun’s solar wind that surrounds our solar system and protects it from harmful interstellar radiation. Tentatively scheduled for launch no earlier than fall 2025 on a SpaceX Falcon 9 rocket from Launch Complex 39A at NASA Kennedy, IMAP will be processed fuelled and encapsulated by the technicians in Astrotech facility.

About the mission

According to reported  NASA’s blog, The IMAP mission will orbit the Sun at a location called Lagrange Point 1 (L1), which is about one million miles from Earth towards the Sun. From this location, IMAP can measure the local solar wind and scan the distant heliosphere without background from planets and their magnetic fields. The spacecraft will use 10 scientific instruments to study and map the heliosphere, a vast magnetic bubble surrounding the Sun protecting our solar system.

At NASA’s Marshall Space Flight Center, IMAP went through thermal vacuum testing at the X-ray and Cryogenic facility that simulates harsh conditions and dramatic temperature changes to simulate the environment during launch, on the journey toward the Sun.

Mission Management

IMAP is the fifth mission in NASA’s Solar Terrestrial Probes program portfolio. It is lead by Princeton University professor David J. McComas with an international team of 25 partner institutions. The spacecraft was built and operated from The Johns Hopkins Applied Physics Laboratory.

Information from this mission are expected to provide early warnings about space weather, which can affect human space explorers and technological systems like satellites and power grids that can affect life on Earth.

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