Astronomers discover sugar in space that's also found in raspberries: "Just floating out in the...
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EN: In news headlines, the simple present tense ('Detect') is commonly used to refer to recent past events to make the news feel more immediate and urgent.
Researchers discover new treatment for rare disease.
EN: The past participle phrase 'Linked to...' functions as an adjectival modifier, reducing the relative clause 'which is/are linked to...' to post-modify the noun phrase 'Sugar Molecule'.
The symptoms linked to the virus include fever and fatigue.
EN: The present perfect tense ('has identified') is used here to describe a recent discovery that has current relevance and ongoing impact on our scientific understanding.
The research team has developed a new method for analyzing atmospheric data.
EN: The present participle phrase 'drifting through...' acts as an adjective modifying the noun phrase 'a remarkable organic compound', describing an ongoing state or action.
We observed several satellites orbiting around the Earth.
EN: The noun phrase 'a discovery...' acts as an appositive to the entire preceding clause, summarizing the previous statement and introducing further elaboration via the relative clause 'that could...'.
The government decided to fund the space program, a move that welcomed praise from scientists.
EN: The past participle phrase 'known as...' acts as a reduced relative clause (which is known as...) modifying the noun 'sugar'. It is set off by commas here to provide non-essential, parenthetical information.
The compound, known as sodium chloride, is essential for human life.
EN: The em dash (—) is used to introduce an appositive or explanatory phrase that defines or elaborates on the preceding noun phrase 'the interstellar medium'. It adds a dramatic pause and provides descriptive details.
We visited the summit — a breathtaking peak covered in perpetual snow.
EN: The past participle 'scattered' functions as an adjective modifying 'clouds'. It is followed by the prepositional phrase 'throughout the galaxy' to indicate the spatial distribution of the clouds.
The islands, scattered throughout the Pacific Ocean, are home to unique species.
EN: The sentence uses a compound predicate with the coordinating conjunction 'and', connecting an active voice verb ('occurs') and a passive voice verb ('is commonly used') sharing the same subject ('this same compound'). This structure allows for concise and cohesive writing in formal and scientific registers.
The newly discovered enzyme breaks down plastic efficiently and is widely utilized in recycling facilities.
EN: The sentence employs the sentence adverb 'Notably' at the beginning to draw the reader's attention to a significant or surprising fact. Sentence adverbs modify the entire clause that follows rather than a single verb or adjective.
Interestingly, the two species evolved similar traits despite living in completely different environments.
EN: The passive voice construction 'is commonly used' is employed here to focus on the action and the object being acted upon (the compound), rather than the agent performing the action (manufacturers or consumers), which is typical in scientific and technical descriptions.
This chemical agent is frequently employed in the preservation of organic specimens.
EN: The term 'self-tanning products' refers to cosmetics used to mimic a sun tan without exposure to harmful UV radiation. In Western beauty culture, tanned skin is often associated with health, leisure, and wealth, which drove the commercial development of these products. Erythrulose, mentioned in the context, is a key active ingredient in these formulations, reacting with amino acids in the skin to darken its appearance.
EN: The past participle phrase 'located in Spain' acts as an adjective modifying the noun phrase 'two dish-shaped radio telescopes'. This is a reduced relative clause, shortened from 'which are/were located in Spain'.
The laboratory equipment located in the basement is used for chemical analysis.
EN: The infinitive phrase 'to gather...' functions as an adverbial of purpose, explaining why the researchers employed the radio telescopes.
The team used a supercomputer to simulate the formation of galaxies.
EN: Compound adjectives like 'dish-shaped' are formed by combining a noun ('dish') with a past participle ('shaped') to describe the physical appearance or characteristics of an object.
They observed several cone-shaped structures on the surface of the asteroid.
EN: The sentence mentions 'Spain' as a hub for astronomical research. Spain hosts several world-class observatories, such as those in the Canary Islands and the Sierra Nevada (where the IRAM 30-metre radio telescope is located). The spelling of 'centre' in the original text reflects British English (UK) standards, which is commonly used in international scientific journals like Nature Astronomy.
EN: The prepositional phrase 'By + -ing' (gerund) is used to express the method or means by which an action is achieved. It answers the question 'How?'.
By analyzing the chemical composition of the meteorites, researchers identified their origin.
EN: The verb 'compare' is typically paired with the preposition 'with' (or 'to') to show the relationship or contrast between two entities. 'Compare A with B' is often preferred in formal scientific writing when examining similarities and differences.
The scientists compared the new data with previous findings to ensure accuracy.
EN: The noun phrase 'the presence of [something]' is a formal academic construction used to state that a substance or element exists or is located in a specific place, rather than using simpler verbs like 'is there' or 'exists'.
Tests confirmed the presence of organic compounds in the soil samples.
EN: The use of a past participle phrase ('published in the journal Nature Astronomy') as a reduced relative clause. This construction modifies the noun 'findings' and is equivalent to 'which were published in...'. It is set off by commas because it provides non-essential (parenthetical) information.
The report, written by a team of experts, highlights the urgent need for climate action.
EN: The post-modifier structure 'ever identified beyond Earth' using a past participle ('identified') followed by an adverbial phrase. 'Ever' is used here to mean 'at any time up to the present', commonly modifying superlatives or noun phrases to emphasize scope.
This is the most complex protein ever synthesized in a laboratory.
EN: The verb 'represent' used in an academic register to mean 'to be equivalent to' or 'to serve as a specimen or example of'. It is a more formal alternative to 'is' or 'are' when describing the significance of research findings.
These ancient ruins represent a major milestone in archaeological history.
EN: The journal 'Nature Astronomy' is a highly prestigious, peer-reviewed scientific journal. Publishing findings here represents a significant milestone in the scientific community, indicating that the research has undergone rigorous scrutiny by global experts.
EN: This is an inverted conditional structure (conditional inversion) used in formal or literary English. It replaces the standard conditional clause 'If it were not for...' by omitting 'if' and placing the auxiliary verb 'were' before the subject 'it'. It is used to express a hypothetical situation in the present or future that is contrary to fact.
Were it not for your timely assistance, we would not complete the project on schedule.
EN: The modal verb 'might' combined with the linking verb 'seem' is used to express a tentative or cautious possibility. It softens the statement, suggesting that while something appears to have a certain quality, it is open to interpretation or not definitively proven.
Without further evidence, the theory might seem highly speculative to the scientific community.
EN: The adverb 'merely' is used to emphasize that something is only what is mentioned and nothing more, often carrying a dismissive or limiting tone. In this sentence, it minimizes the significance of 'whimsical' to contrast it with the actual 'broader significance'.
The initial symptoms were merely a mild headache, but they soon worsened.
EN: The present perfect tense ('have emphasised') is used here to describe a past action that has strong relevance to the present. In scientific and academic writing, it often introduces a prevailing consensus or ongoing state of research.
Researchers have demonstrated that early intervention significantly improves outcomes.
EN: The noun clause introduced by 'that' acts as the direct object of the verb 'emphasised'. It contains a complete sentence structure ('different sugar varieties fuel... and even constitute...') that details the content of the emphasis.
She argued that the experimental data was inconclusive.
EN: The verb 'fuel' is used metaphorically here to mean 'to provide energy or support for a process'. It is paired with 'constitute' (to make up or form) using the coordinating conjunction 'and' to show parallel actions performed by 'different sugar varieties'.
The government's new policy is expected to fuel economic growth.
EN: The mention of DNA (Deoxyribonucleic acid) in relation to space chemistry highlights a major focus of astrobiology: understanding the prebiotic origins of life. In English-speaking scientific discourse, discussing 'the building blocks of life' (like sugars and amino acids found in space) is a common way to bridge complex chemistry with general public interest.
EN: Gerund as Subject: The -ing form of a verb ('Understanding') can function as a noun and serve as the subject of a sentence. It takes a singular verb ('is').
Developing new technologies requires significant financial investment.
EN: Embedded Question as Object of Gerund: The noun clause 'how these organic compounds form...' acts as the direct object of the gerund 'Understanding'. It follows statement word order (subject + verb) rather than question word order.
Explaining why the experiment failed was difficult for the team.
EN: Adjective + Preposition Collocation: 'Crucial to' is followed by a noun phrase or a gerund ('unravelling'). The 'to' here is a preposition, not part of an infinitive, which is a common source of error for learners.
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EN: The emphatic phrase 'by no means' is used to strongly deny a statement or to emphasize that something is definitely not the case. It functions as an adverbial phrase and is more formal and emphatic than 'not at all' or 'definitely not'.
The challenging project is by no means complete, but we have made significant progress.
EN: The noun 'instance' refers to a particular case or occurrence of something. When paired with 'of', it introduces the specific category or phenomenon being exemplified (e.g., 'instance of [noun/gerund]').
This is a rare instance of cooperation between the two rival companies.
EN: The use of 'molecular cousin' is a metaphorical extension. In scientific writing, 'cousin' is often used to describe a compound or molecule that has a similar chemical structure or relationship to another well-known substance.
The researchers discovered a chemical cousin of aspirin in the bark of the local willow tree.
EN: The prepositional phrase 'near the galactic centre' functions as an adverbial of place, modifying the verb 'spotted'. 'Galactic' is the adjectival form of 'galaxy'.
Astronomers observed a massive black hole near the galactic centre.
EN: The term 'table sugar' refers to sucrose, the common sugar used in households. In scientific contexts, comparing complex interstellar molecules to everyday substances like 'table sugar' or 'raspberries' helps make advanced astrobiology more relatable and understandable to the general public.
EN: The relative pronoun 'that' introduces a defining relative clause modifying the noun phrase 'black grains'. In this clause, 'that' functions as the subject, followed by the verb 'yielded'. This structure is essential for specifying which grains are being referred to.
The team analyzed the soil samples that contained rare organic compounds.
EN: The preposition 'alongside' is used to mean 'together with' or 'in addition to'. It is often employed in formal or scientific contexts to describe co-occurrence or physical coexistence of multiple elements.
The rover discovered water ice alongside various mineral deposits on the planet's surface.
EN: The suffix '-like' is attached to a noun (here, 'gum') to form an adjective meaning 'resembling' or 'having the characteristics of'. It is a highly productive way to describe unfamiliar substances by comparing them to familiar ones.
The scientists observed a gel-like layer forming over the chemical mixture.
EN: This sentence refers to NASA's OSIRIS-REx mission, which successfully returned samples from the near-Earth asteroid Bennu in September 2023. The discovery of organic molecules like sugars and amino acids on asteroids supports the panspermia hypothesis—the idea that the chemical precursors to life on Earth may have been delivered by celestial impacts billions of years ago.
EN: The idiom 'lend credibility to' means to make an opinion, story, or theory seem more likely to be true. It is highly common in academic and formal registers.
The newly discovered documents lend credibility to the historian's original theory.
EN: The modal perfect construction 'may have + past participle' is used to express a possibility about a past event where the speaker is not entirely certain.
The ancient civilization may have collapsed due to sudden climate change.
EN: The reflexive pronoun 'themselves' is used here as the direct object of the verb 'sustained' because the subject of the noun clause ('the earliest forms of life') is the same as the object.
EN: The relative clause 'where erythrulose was found' is an adjective clause modifying the noun 'The region'. The relative adverb 'where' is used because it refers to a place and functions as an adverbial of place within the clause.
This is the laboratory where the breakthrough discovery was made.
EN: The present perfect passive voice ('has also been traversed') is used to describe an action that occurred at an unspecified time in the past, with a continuing relevance to the present. The passive voice shifts the focus to the receiver of the action ('The region').
The ancient ruins have been visited by millions of tourists over the decades.
EN: The phrase ', the farthest spacecraft ever launched from Earth' is an appositive noun phrase that provides non-essential, descriptive information about 'NASA's twin Voyager probes'. The past participle 'launched' acts as an adjective modifying 'spacecraft'.
We finally reached Mount Everest, the highest peak in the world.
EN: The 'Voyager' program refers to NASA's twin robotic probes, Voyager 1 and Voyager 2, launched in 1977. Voyager 1 became the first human-made object to enter interstellar space in 2012, followed by Voyager 2 in 2018. They carry the famous Golden Records, intended to communicate the story of our world to any extraterrestrial life.
EN: The use of a 'that-clause' as a subject. A noun clause starting with 'That' can function as the subject of a sentence, representing a fact, idea, or situation. It is often used in formal or academic writing to introduce a complex proposition before stating its effect or impact.
That the global temperature continues to rise concerns scientists worldwide.
EN: The use of 'should' in that-clauses to express surprise, indignation, or strong emotion (often referred to as the emotional 'should'). It does not indicate obligation here, but rather highlights the unexpected or remarkable nature of the situation.
It is surprising that he should say such a thing to his mentor.
EN: The structure 'strike someone as something'. This idiom means to give someone a particular impression or to be perceived by someone in a specific way. It is commonly followed by a noun phrase or an adjective phrase.
His humble attitude struck the interviewers as highly professional.
EN: The sentence reflects a common philosophical sentiment in modern astrophysics: the juxtaposition of advanced scientific discovery with human humility. The realization that complex organic molecules (the building blocks of life) exist naturally in the harsh environment of deep space often evokes a sense of awe, bridging the gap between cold science and existential wonder.
EN: This sentence utilizes a conditional inversion (also known as a 'should-inversion') in the protasis (the 'if'-clause). In formal or academic English, 'if' can be omitted, and the auxiliary verb 'should' is inverted with the subject. This structure expresses a hypothetical future possibility (similar to a First Conditional but more tentative or formal).
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EN: The phrase 'far-reaching' is a compound adjective meaning having important and widely applicable effects or implications. It is commonly paired with nouns like 'implications', 'consequences', 'effects', or 'reforms' to describe deep, long-lasting impact.
The supreme court's decision will have far-reaching consequences for privacy rights.
EN: The word 'indeed' is used as an intensifier at the end of the clause to emphasize the truth or strength of the statement 'would be far-reaching'. It adds a tone of conviction and academic weight to the conclusion.
The results of the clinical trial are very promising indeed.
EN: The sentence reflects the cautious yet optimistic tone typical of peer-reviewed scientific journalism (such as in 'Nature Astronomy'). Rather than making definitive claims, scientists use conditional structures ('Should... would be...') to maintain empirical rigor while highlighting the profound philosophical and scientific excitement of finding organic precursors to life in deep space.
Key vocabulary words with IPA pronunciation, definitions, example sentences, and interactive quizzes.
Phrases with type tags, bilingual definitions, usage notes, and example sentences.
The matter (gas and dust) that exists in the space between the star systems in a galaxy.
To make an opinion, claim, or story seem more likely to be true or believable.
Used to say that someone or something is the only reason why something else did not happen or is not true.